Podcasts about khz

Radio Channel 292 recorded on March 19, 2023 at 1348 UTC broadcasting on shortwave frequency of 9670 kHz. Recording made using Kenwood R-5000 receiver and Wellbrook ALA 1530+ antenna.

Foundations of Amateur Radio Our community is full of TLAs, or three letter acronyms. Some of them more useful than others. For example, I can tell you thank you for the QSO, I'm going QRT, QSY to my QTH. Or, thanks for the chat, I'll just shut up and take my bat and ball and go home. Acronyms arise every day and it came as no surprise to spot a new one in the wild the other day, SHF. It was in a serious forum, discussing antennas if I recall, so I didn't blink and looked it up. Super High Frequency. Okay, so, where's that? I'm familiar with VHF and UHF and as radio amateurs we're often found somewhere on HF, that's Very High Frequency, Ultra High Frequency and High Frequency if you're curious. Turns out that the ITU, the International Telecommunications Union has an official list, of course it does. The current ITU "Radio Regulations" is the 2020 edition. It's great bedtime reading. Volume one of four, Chapter one of ten, Article two of three, Section one of three, Provision 2.1 starts off with these words: "The radio spectrum shall be subdivided into nine frequency bands, which shall be designated by progressive whole numbers in accordance with the following table." When you look at this table you'll discover it starts with band number four and ends with band number twelve, between them covering 3 kHz to 3000 GHz. In position ten you'll see the designation "SHF", covering 3 to 30 GHz, centrimetric waves. A couple of things to note. The list starts at band four. There are of course frequencies below 3 kHz. The list ends at twelve, but there are frequencies above 3000 GHz. You'll also note that I'm not saying 3 Terahertz, since the ITU regulations specify that you shall express frequencies up to 3000 GHz using "gigahertz". Interestingly the same document has a provision for reporting interference where you can report using Terahertz frequencies, so I'm not sure how the ITU deals with such reports. Another thing to note is that this table doesn't actually define what SHF means. It's nowhere in the radio regulations either, I looked. I'm not sure where the words Super High Frequency came from. There is an ITU online database for looking up acronyms and terms. That leads to a document called "Nomenclature of the frequency and wavelength bands used in telecommunications", which also doesn't use "Super High Frequency" anywhere. That said, using the ITU band four, where its definition starts, the VLF band, or Very Low Frequency, followed by LF, Low Frequency, MF, Medium Frequency, the familiar HF or High Frequency, VHF, UHF, then SHF and beyond that, EHF, Extremely High Frequency and THF or Tremendously High Frequency, yes, Tremendously High. There's a report called the "Technical and operational characteristics and applications of the point-to-point fixed service applications operating in the frequency band 275-450 GHz". It introduces the term "THF which stands for tremendously high frequency" but adds the disclaimer that "this terminology is used only within this Report." Seems that there are plenty of documents on the ITU website using that same definition, so I'm guessing that the cat is out of the bag. THF by the way is defined as being for 300 to 3000 GHz frequencies. By the way, the ITU TLA finder exposes that THF stands for Topology Hiding Function. Where's a good acronym when you need it? Speaking of definitions, I came across the definition of a "taboo channel" which according to the ITU is "A channel which coincides with the frequency of the local oscillator in the single super heterodyne receiver which is tuned to an analogue channel." Anyway, we still have a way to go. Below band four, less than 3 kHz, we have ULF or Ultra Low Frequency, SLF, Super Low Frequency and ELF, Extremely Low Frequency, which is defined as band one, between 3 and 30 Hz. Below that, some have suggested TLF, or Tremendously Low Frequency which apparently goes between 1 and 3 Hz with a wavelength between 300,000 down to 100,000 km. Others have suggested that this is an internet meme, but so far it seems to me that it has just as much legitimacy as any of the other wordings, since it appears that the ITU explicitly excludes such definitions, even if internal documents introduce terms from time to time. It did make me wonder, what comes after Tremendously High Frequencies, Red? Turns out, yes, well, infra-red pretty much follows on from Tremendously High Frequencies. If you think that's the end of it, think again. The IEEE, the Institute of Electrical and Electronics Engineers has its own definitions, of course it does. Unfortunately they decided that you need to pay for their standard. It was first issued in 1976 "to remove the confusion". There's an xkcd comic called "Standards", number 927 if you're looking. It goes like this: Situation: There are 14 competing standards. 14?! Ridiculous! We need to develop one universal standard that covers everyone's use cases. Yeah! Soon: Situation: There are 15 competing standards. Anyway, the IEEE designates that after UHF comes L or Long wave, followed by S, or Short wave, then comes C, the compromise between Short wave and X or cross or Exotic. Then there's Ku, Kurtz Under, K, Kurtz, and Ka or Kurtz above, Kurtz being the German word for Short. There's the V band and the W band which follows the V band. Had enough yet? NATO, the EU and the US define these using letters of the alphabet. And broadcasters use Band Numbers which link up to nothing in particular. I wonder if the measure of a society is just how many different ways can be used to describe the same thing. Perhaps we should have stopped at Hertz or Hz, which was established in 1930 by the International Electrotechnical Commission, as an expression of the number of times that a repeated event occurs per second, in honour of Heinrich Hertz. One more three letter acronym, the International Electrotechnical Commission is better known as the IEC. I wonder if the ITU is taking suggestions, ginormous, utterly, inordinately, awfully and humongously seem like perfect opportunities for future expansion. I'm Onno VK6FLAB.

Vatican Radio broadcasting Holy Mass in English. Recorded in Europe on 24 February 2023 at 11.30 UTC. Shortwave frequency of 15595 kHz. Received using Kenwood R-5000 and Wellbrook ALA1530+ antenna.

This week we list the content our listeners use to show off their systems whether it be for music listening or movie watching. Also, Sony announced five new receivers that we discuss. And as usual, we read your emails and go over the week's news. News: Super Bowl LVII will screen in 4K and Dolby Vision, but there's a catch Google Plans To Punch Up ‘NFL Sunday Ticket' With New Features Klipsch Expands High-Resolution Powered Speaker Series QD-OLED TV Prices Could Get Cheaper As Samsung Puts Production In Overdrive Sonos' next speakers will be called the Era 300 and Era 100 Listener Recommended Music and Movie Demo Material Music JR - provided the following Spotify Playlist for Music Demos Dan - Marcus Miller: Blast (from the album Marcus) Blast Stan - Daddy's Gonna Pay For Your Crashed Car (U2) & the first three minutes, and Dear Prudence (Beatles) Brian Donald Fagen – The Nightfly – I.G.Y. (DSD64 5.1) Foreigner – 4 – Waiting for a Girl Like You (DSD64 5.1) The Alan Parsons Project – The Turn of a Friendly Card – Games People Play (DSD64 Stereo) Heart – Dreamboat Annie – Crazy on You (FLAC 24bit/192kHz) Steely Dan – Aja – Aja (DSD64 Stereo) Aerosmith – Toys in the Attic – Walk This Way (DSD64 5.1) Beck – Sea Change – Any Track! (DSD64 5.1) Dire Straits – Brothers in Arms – Money for Nothing (DSD64 5.1) Tears for Fears – The Tipping Point – Break the Man (Dolby Atmos) Sting – Nothing Like the Sun – Englishman in New York (FLAC 24bit/96kHz) Toto – IV – Africa (DSD64 5.1) Curt - provided the following Spotify Playlist for Music Demos John - My number one all time favorite test track that I have been using for over 30 years Is Supertramp's song Fool's Overture from their live album Paris.  There is so much happening in the song in the different parts of the song.  In the middle of the song it goes to all different sounds like a grandfather clock, wind blowing and then a great bass guitar building up to the second part of the song with a sax and other high pitch instruments and then it mellows down to a piano, drum and singer.  This song gives me everything in one song to push and test speakers. Fleetwood Mac - Tusk (Bass) Rush - YYZ This instrumental track will put any speaker to the test. This is a very fast paced song with a lot of stereo testing as instruments move from one speaker to another (helps in speaker placing) and its fast. Chris Issak - Baby Did a very bad thing - he has an amazing voice and he can go from deep to very high Mark - Chuck Mangione - Feels So Good Poco - Heart of the Night Poco - Crazy Love From the Tommy Bolin album Private Eyes, Bustin' Out For Rosey, Sweet Burgundy, Post Toastee Bill - here's a track I use to show off my subs. It was recorded by the Yellowjackets (Galileo for Jaco) as a tribute to Jack Pastorius in the 80s so it has that digitally produced sound. I've had grown men giggle like a kid at about a minute in. Enrique -  Hans Zimmer: Live in Prague Movies DJ - District 9 start at 12:15 and at 12:24 the engine shuts off and you can feel it. JR - Ride of the Rohiorrim scene in The Return of the King (Youtube Clip in 4K with Atmos of this scene) Brian Blade Runner 2049 – Intro Scene Gemini Man – Intro Scene (Dolby Vision 4K60) Mad Max: Fury Road – Intro Scene Ready Player One – Race Scene Midway – Pearl Harbor Attack Scene Top Gun: Maverick – Mach 10 Scene Top Gun: Maverick – 2 Minutes 15 seconds Trial Run Scene Curt - The race scene from “Ready Player One” (Atmos!), train wreck scene from “Super 8” (not Atmos or DTSX, but awesome surround cacophony) John - the end of John Wick when they are in the rain and talking. Also Aquaman the fight sequence about a third of the way in the Italian village.  Mark - Ready Player One, the race scene early in the movie, Dune, around 2 hours into the movie they place the devices to lure the worms, the bass is insane with that, The Dark Knight, when Batman is in the batcave and he's test firing a big gun, crazy bass there too Enrique - Maverick (of course), Mad Max, Blade Runner 2049 Sony Electronics Launches new ES 8K AV Receiver Lineup Sony Electronics Inc. announced its newest addition to the brand's AV receiver line. These receivers are the first from Sony to feature 8K and 4K/120 support as well as Sony's 360 Spatial Sound Mapping technology. These receivers were tuned by Sony engineers to provide the most immersive home theater experience yet. The new ES line features four new models built mainly for custom installation.  Additionally, the STR-AN1000 receiver is created for consumers looking to upgrade their current home theater system. Full Press Release Here… STR-AN1000 - 7.2 Channel 8K A/V Receiver (Pre-Order for $899.99) 7.2-channel A/V Receiver (165 W 6 ohms, 1 kHz, 1ch, THD 0.9%) 8K & 4K/120Hz HDMI Connectivity with HDMI 2.1 support (6-in/2-out) Supports Dolby Atmos® & DTS:X® object-based sound decoding Immersive audio with Digital Cinema Auto Calibration IX and 360 Spatial Sound Mapping  What is 360 Spatial Sound Mapping By utilizing the positional information measured by Sony's Digital Cinema Auto Calibration IX (D.C.A.C. IX), multiple phantom speakers are generated all around the room so cinema lovers can experience every breath, step, and word as if inside the film. D.C.A.C. IX, the latest auto-calibration technology developed by Sony, can correct the distance, angle, sound pressure and frequency response of each speaker by measuring the speaker placement in 3D using the supplied calibration microphone. This works alongside Auto Phase Matching which aligns the phase of different speakers. This means users can compensate for challenging speaker placement, delay or phase shift and feel fully immersed in a movie. Additionally, enjoy music the way the artists truly intended with High-Resolution Audio for crystal clear precision. The ES series and STR-AN1000 also supports DSD (Direct Stream Digital) native playback, with no conversion involved so DSD content can be fully enjoyed without losing any of the original quality. When connected to a BRAVIA XR TV with Acoustic Center Sync, the ES series and STR-AN1000 combine audio from the TV with the audio from the center speaker to create an incredible sound-from-screen experience. Dialogue will appear to come directly from the characters on the screen creating a much more immersive experience. The ES Series models are available for presale at Sony Electronics. STR-AZ1000ES: 7.2 CH (100W 8 ohms) A/V Receiver will be priced at MSRP $1,099.99   STR-AZ3000ES: 9.2 CH (120W 8 ohms) A/V Receiver will be priced at MSRP $1,699.99 STR-AZ5000ES: 11.2 CH (130W 8 ohms) A/V Receiver will be priced at MSRP $2,099.99 STR-AZ7000ES: 13.2 CH (150W 8 ohms) A/V Receiver will be priced at MSRP $3,299.99 The only real difference in features besides the number of amps and channels is that the 5000 and 7000 have three 12V triggers and the 1000 and 3000 only have one. The Standard AN1000 does not have a 12V trigger  

Live, off-air, three-hour excerpt of a recording of the provincial Cuban station Radio Metropolitana, CMBL, Havana, Cuba, on 10 November 2022 beginning at about 20:00 UTC. The station operates on an frequency of 910 kHz from a transmitter in the Villa Maria area of the Distrito de Guanabacoa municipality of Havana with a power of 5 kW and an omnidirectional antenna. The station also transmits on 98.3 MHz in the FM band.The transmission was received on a Tecsun PL-880 portable receiver with its built-in ferrite-bar-loop antenna in Marathon, Florida, in AM mode with 2.3 kHz RF filtering. Reception was fairly good with some background noise due to the slightly weak signal associated with the over 200 km long-range reception.Radio Metropolitana is part of the group of stations that make up the Provincial Directorate of Radio in Havana with studios in the FOCSA building in Havana's Vedado district. It is on the air 24 hours a day and offers cultural programming with a strong presence of music aimed at families in the capital city. Its slogan is "La radio de casa" and its theme tune is a fragment of the familiar song "El Manisero" ("The Peanut Vendor") by Cuban composer Moisés Simons. Both can be heard frequently in this recording.The recording begins with a song by Puerto Rican singer Kany García followed by the program "De Buena Tinta" (literally "of good ink" but an idiomatic expression meaning "on good authority") beginning at 20:00 UTC. This is a news program for residents of Havana including events taking place, weather, and sports. At 20:30 UTC, there is the program "La Novela" (The Novel) with an instalment of "La Flor de los Sueños" (The Flower of Dreams). Next is "Un Amigo Cincero" (A Sincere Friend), a brief program on the literature of José Martí. The program "Por La Habana" (Around Havana) begins at 21:00 UTC. This program is mostly music with Cuban jazz, blues, and funk. Between every few musical items is a discussion of indigenous languages in Latin America and elsewhere and their impact on music. At 22:30 UTC, the program "Para Luego es Tarde" (meaning colloquially "no time like the present") begins. This edition features a discussion about corn (maize), its history and how it is grown, harvested, marketed, prepared for food and other uses. Midway through the program there is a musical interlude with a short discussion about the Bee Gees with excerpts of several of their songs. During some of the programs in the recording, mention is made of the 503rd anniversary of the founding of Havana on 16 November 1519. Public service announcements about health and other matters are also present throughout the recording.

Radio Free Europe - Radio Liberty presumably test shortwave transmission on the frequency of 3975 kHz at 22.24 UTC on 8 February 2023. Received using SDR web receiver located in Germany.

Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:Broadcaster: United Arab Emirates Radio from DubaiDate of recording: circa 1983Frequency: 21.655 MHzRX location: Brantford, Ontario, CanadaReceiver and antenna: Panasonic RF-3100 and longwire antennaNotes: By the 1980's, UAE Radio stations in Dubai and Abu Dhabi were using high powered transmitters and could often be heard nice and clear here in Southern Ontario, Canada with English language programs.Here is an aircheck circa 1983 from United Arab Emirates Radio from Dubai broadcasting on 21655 kHz.

BBC in French recorded in Europe February 5, 2023 at 12.00 UTC, the shortwave frequency of 21500 kHz.

This episode contains: All three hosts are here, slowly rotating around the sun, to bring you science and science fiction. Devon explains why he can't record this afternoon (the answer is football). Ben tells us about the ongoing woes of being a home owner. Steven and Ben talk about playing Walkabout Mini Golf on VR. Listen To This: MusicLM: Generating Music From Text. MusicLM is a model generating high-fidelity music from text descriptions such as "a calming violin melody backed by a distorted guitar riff". MusicLM casts the process of conditional music generation as a hierarchical sequence-to-sequence modeling task, and it generates music at 24 kHz that remains consistent over several minutes. https://google-research.github.io/seanet/musiclm/examples/ Riffusion's AI generates music from text using visual sonograms. Riffusion is an AI model that generates music from text prompts by creating a visual representation of sound and converting it to audio for playback. It uses a fine-tuned version of the Stable Diffusion 1.5 image synthesis model, applying visual latent diffusion to sound processing in a novel way. https://arstechnica.com/information-technology/2022/12/riffusions-ai-generates-music-from-text-using-visual-sonograms/ Big Question: What sci-fi universe would you want to live in? What if you had to support your current family and could not count on being a hero in that story? What if Skype kept disconnecting you?  

Many thanks to SRAA contributor, Paul Walker who shares this recording of Radio Romania International's Hebre Language Service. This recording was made in McGrath, Alaska, on 7,370 kHz at 17:31 UTC on November 20, 2022. Paul notes. “this is RRI with their once weekly 30 minute broadcast in Hebrew on 7370 from Galbeni, to the Middle East

Kopfhörer ist nicht gleich Kopfhörer. Gerade im hochwertigen Segment konkurrieren verschiedene Technologien um die klangliche Vorherrschaft. Doch welche Technologien gibt es, was sind ihre Vorteile, was die Nachteile?Das bespricht Olaf mit einem Experten auf diesem Gebiet, Christian Rechenbach. Christian kennst du womöglich schon aus der allerersten Folge von kHz & Bitgeflüster. Dort ging es um das Thema Highres, und schon damals standen hochwertige Kopfhörer als einfachste und vergleichsweise günstige Möglichkeit im Raum, den Klangvorteil von Highres-Musik zu erfahren. In der neuen Folge geht es nun darum, wie diese Kopfhörer ihren Wohlklang erzeugen. Dynamisch, elektrisch, magnetisch – oder doch statisch? Dynamisch, Elektrostat, Magnetostat – vielleicht hast du diese Begriffe schon mal irgendwo gelesen. Doch was bedeutet das? Wie funktionieren die verschiedenen Technologien und was sind ihre Vor- und Nachteile? Das versucht Olaf im Gespräch mit Christian herauszufinden. Warum es dabei fast zwangsläufig auch um Starkstrom, schwere Kopfhörer und fette Preisschilder geht, erfährst du in dieser Folge von kHz & Bitgeflüster. Shownotes: kHz & Bitgeflüster Folge #28Shopseite von Audionext, dem Arbeitgeber von Christian: https://www.audiodomain.de/ Infos und Bilder zum Jecklin Float:Infos (Wikipedia) Bilder (Google) Christians Musik-Tipp:The Yuri Honing Trio – Walking On The MoonTIDAL: https://tidal.com/browse/track/82218196QOBUZ: https://open.qobuz.com/track/46160628 Hosted on Acast. See acast.com/privacy for more information.

Many thanks to SRAA contributor, Paul Walker, who shares the following recording of VOA made on November 22, 2022 at 20:34 UTC on 11,850 kHz in McGrath, Alaska. Paul notes that this was actually a program feed error because the Kirundi Language Service is normally broadcast at this time and on this frequency.

Many thanks to SRAA contributor, Dan Greenall, who shares the following recordings and notes:Broadcaster: Voice of America Okinawa Rhodes Philippines Greenville Woofferton 1970'sDate of recordings: variousFrequency: variousReception location: Ancaster, Ontario, CanadaReceiver and antenna: Hallicrafters S-52 using a longwire antennaNotes: In the 1970's, Voice of America relay transmitter sites often gave their location between programs. Some VOA programs were relayed via the BBC site at Woofferton, England (audio from 1971). Reception of Rhodes in the 41 metre band was not easy here in Ontario, Canada as evidenced by that recording. The transmitter at Greenville, North Carolina was their largest operation. That recording is circa 1973. The Okinawa relay was heard on 7165 kHz, and Philippines relay 15185 kHz, both recorded in 1971. The Yankee Doodle tune was played during most of these interludes.

Travel north of Harrisburg, Pa., just south of Williamsport or east of Penn State University and you'll find Sunbury, where longtime Program Director and morning host Mark Lawrence has led independently owned WKOK "NewsRadio 1070" for 21 years come February.What's it like to lead an AM spoken word radio station in an era where the removal of kHz-band receivers from automobiles is a hot topic? How essential is AM radio's future in rural markets such as Lawrence's, and for stations like his that don't have a FM translator?Lawrence shares his thoughts and more in this InFOCUS Podcast, presented by dot.FM, in an engaging conversation with Editor-in-Chief Adam R Jacobson.

Live, off-air, three-hour recording of the special annual Gruss an Bord broadcast from German broadcaster NDR, Norddeutscher Rundfunk, on 24 December 2022 beginning at just after 18:00 UTC. The broadcast features music and greetings to and from mariners around the world. The Christmas greetings were recorded at two events on the third Advent Sunday (11 December) in Leer and on the fourth Advent Sunday (18 December) in Hamburg.Relatives and friends had the opportunity to wish their loved ones at sea a happy holiday and a happy new year. The Leer event featured the Bingumer Shanty Choir and Anne-Fleur Schoch and her band while the Hamburg event featured Beatles experts Stefanie Hempel and The Silver Spoons. The broadcast was primarily in German with some greetings in English, Filipino, and Portuguese as well as German. A number of songs in English, too. A news bulletin (in progress when recording began) precedes the program for a few minutes.In addition to being carried on the NDR Info and NDR Info Spezial networks, the broadcast was transmitted around the world on shortwave using transmitters in Nauen (NAU), Germany; Issoudun (ISS), France; Tashkent (TAC), Uzbekistan; and Okeechobee, Florida (RMI), U.S.A.; and was organized by Media Broadcast.The schedule was: 1800-2100 on 6030 ISS 250 kW / 251 deg to North/East Atlantic1800-2100 on 6080 TAC 100 kW / 301 deg to West/Central Europe1800-2100 on 9740 NAU 250 kW / 130 deg to Indian Ocean - West1800-2100 on 11650 ISS 250 kW / 148 deg to Indian Ocean - SoAf1800-2100 on 13725 NAU 250 kW / 205 deg to Southern Atlantic1800-2100 on 15770 RMI 100 kW / 044 deg to North/West AtlanticRMI, Radio Miami International, experienced a power outage and was off the air for about the first two hours of the broadcast.The recording is primarily of the transmission on the frequency of 11650 kHz for about the first two hours and 6030 kHz for the third hour as the signal degraded on 11650 kHz.The program was received outdoors on a Tecsun PL-880 receiver with a Tecsun AN-03L 7-metre wire antenna in Hanwell (just outside Fredericton), New Brunswick, Canada, in AM mode with 2.3 kHz filtering. Reception was good for the most part on both recorded frequencies although, as previously mentioned, signal quality on 11650 kHz degraded during the second hour of the broadcast necessitating the switch to 6030 kHz. There was some adjacent channel interference on 11650 kHz at times. Also, there was about a one-minute dropout of the 11650 kHz frequency around the start of the second hour of the broadcast. The last minute or so of the broadcast on 6030 kHz was interfered with by a co-channel digital transmission from Radio Romania International.

El último peldaño (23/12/2023) GRUPO HEPTA: XIV JORNADAS DE PARAPSICOLOGÍA. El próximo 9 de enero comenzarán las XIV Jornadas de Parapsicología organizadas por el Grupo Hepta en Madrid. Hasta el 13 de marzo, cada lunes una serie de expertos, investigadores, divulgadores y escritores hablaran sobre temas de parapsicología, OVNIs, misterios de la antigüedad, etc. Hablamos con Sol Blanco Soler, cofundadora del Grupo Hepta, para que nos diese todos los detalles de estas importantes jornadas y también nos presentase su último libro “No saben que están muertos”, que ofrece los 31 últimos casos investigados por el grupo. LA ALQUÍMIA DEL HIDRÓGENO A principios de los años 70 del siglo XX un inventor extremeño, Arturo Estevez, dijo haber inventado un motor que funcionaba con agua, de la que extraía el hidrógeno para usarlo como combustible. Aquel invento se perdió en las brumas del pasado, sin embargo la carrera por el hidrógeno como vector energético está de plena actualidad, así como la posibilidad de obtener energía nuclear de fusión asequible. Con Israel Ampuero, Doctor en Bioquímica, hablamos de los últimos avances en fusión nuclear y obtención de hidrógeno, recordando también mitos y eventos del pasado, como la fusión fría o el invento español del motor de agua. UVB-76: EXTRAÑAS INTERFERENCIAS UVB-76 es el indicativo con el que se conoce una misteriosa estación de radio rusa que podría tener sus orígenes en tiempos de la guerra fría entre el bloque occidental y la antigua URSS. Desde entonces no ha cesado de emitir, en la frecuencia de 4625 kHz, unos característicos zumbidos repetitivos, lo que ha hecho que popularmente se le conozca como “el zumbador”, pero curiosamente también ha transmitido mensajes de voz en ruso de vez en cuando. Enrique Lucas, nos informó de lo que está sucediendo recientemente con esta emisora, que está siendo interferida por unas interferencias de origen desconocido. Con la colaboración de María José Garnández. Dirección y presentación: Joaquín Abenza. Blog del programa: http://www.elultimopeldano.blogspot.com.es/ WhatsApp: 644823513 Programa emitido en Onda Regional de Murcia

The following recording of Paul Walker's Christmas Special on KSKO was recorded on a live relay from WRMI on 5900 kHz on Friday, December 24, 2022 starting around 00:10 UTC.This recording was made on the U Twente WebSDR in the Netherlands.

Foundations of Amateur Radio Propagation, the art of getting a radio signal from one side of the globe to the other, is a funny thing. As you might know, I've been experimenting with WSPR or Weak Signal Propagation Reporter and for about a year running a beacon on 10m. Out of the box my beacon uses 200 mW to make itself heard. I couldn't leave well enough alone and I reduced the output power. Currently a 10 dB attenuator is connected to the beacon, reducing output to a notional 20 mW. I say notional, since I haven't actually measured it, yet. With so little power going out to my vertical antenna, a homebrew 40m helical whip, built by Walter VK6BCP (SK), and tuned to 10m with an SG-237, it's interesting to discover what's possible. Last night my signal was heard in Denmark. Picked up by Jorgen OZ7IT, 13,612 km away. That report broke another personal best for me, achieving 680,600 kilometres per Watt. I was stoked! I shared a screen-shot of my report with friends. One friend, Allen VK6XL, asked a very interesting question. "What makes you think it was short path?" Before I go into exploring that question, I need to explain. If I was to fly from Perth to Sydney, the popular way to travel is across the Australian Bight, over Truro, north of Adelaide, clip the northern tip of Victoria, over the Blue Mountains to Sydney. The distance is about 3,284 km. This route is known as the great circle route, more specifically, the short great circle route. It's not the only way to travel. Instead of heading East out of Perth, if I head West, I'd fly out over the Indian Ocean, Africa, the Atlantic Ocean, the Americas, the Pacific Ocean and finally arrive at Sydney. That journey would also follow a great circle route, the long great circle route. It's about 37,000 km long. You might notice that I wasn't very specific with either the path or distance. There's a reason for that. None of the tools I've found actually provide that information, other than to point out that the entire circumference of the planet is about 40,000 km and that it's not uniform since Earth isn't a perfect sphere. You might be asking yourself at this point why I'm spending so much energy worrying about taking the long way around and how that relates to my 20 mW WSPR beacon. In amateur radio we refer to these two travel directions as the short-path and the long-path. Radio signals travel along the curvature of Earth bouncing between the Ionosphere and the surface. How that works exactly is a whole different topic, but for the moment it's fine to imagine a radio signal skipping like a stone on water. As a stone skips a couple of things happen. If the angle at which it hits the water is just right, it will continue on its journey, get the angle wrong and you hear "plop". Every skip is slightly lower than the previous because the stone is losing a little bit of energy. Every time the stone touches the water it creates a splash that ripples out in a circle from the place where the rock hit. These ripples also get weaker as they increase in diameter. Consider what happens if you skip a rock across concrete or sand instead of water and if you really want to geek out, there's also wind resistance on the rock. A complex equivalent dance affects a radio signal when it propagates between two stations. For success, enough radio energy needs to reach the receiver for it to be decoded. For our signal to make it to the other side of the globe it must bounce between the Ionosphere and Earth's surface. Every bounce gets it closer to the destination. Each time it loses a little bit of energy. This loss happens at the Ionosphere, at the surface and in between through the atmosphere. To give you a sense of scale, my signal report from Jorgen in Denmark was -28 dB. It started here in Perth as 13 dB, so we lost 41 dB along the way. We're talking microwatts here. I'll note that I'm avoiding how this is exactly calculated, mainly because I'm still attempting to understand how a WSPR signal report actually works since it's based on a 2,5 kHz audio signal. As I said, enough energy needs to make it to the receiver for any of this to work. There's an assumption that less distance means less energy loss. It's logical. A shorter distance requires less hops and as each hop represents a specific loss, less hops means less loss. But is that really true? There's nothing stopping my beacon signal from taking a different route. Instead of travelling the short-path, it can just as easily head out in the opposite direction. Theoretically at least, my vertical antenna radiates equally in all directions. The long-path is mostly across water between Perth and Denmark. What if hops across the ocean were different than hops across a landmass? Turns out that they are in several ways. For example, there's less energy loss in a refraction across the ocean, how much less exactly is still being hotly debated. Much of the data is empirical at the moment. It gets better. What if I told you that the report was near to sunset? At that time there's a so-called grey line phenomenon related to how the sun stops exciting the Ionosphere and how different layers of the Ionosphere start merging. As a result the angles of refraction across the Ionosphere change and longer hops are possible. What if the long-path took less energy to get to Denmark than the short-path did? Would Jorgen's decoder care? If that's the case, my signal didn't travel 13,612 km, it travelled twice that and I'd have well and truly cracked a million kilometres per Watt. So, is there a way we could know for sure? Well, yes and no. For starters we'd need beacons that transmit at a very precise time. Then we'd need synchronised receivers to decode the signal. A signal travels 3,000 km in a millisecond, so we're going to need something more precise than the timing set by NTP or the Network Time Protocol used by your home computer. If we used GPS locked transmitters and receivers we'd be working in the order of 50 nanoseconds and be in the range of 15m accuracy. That would allow us to calculate the physical distance a signal travelled, but that's not the whole story. What happens if your signal travels all the way around the globe, or if some of it reflects back, so called back scatter, like the ripples from a stone coming back towards you, and that signal travelling back past you to the receiver? There's endless variation, since the planet isn't round with a flat surface nor is the Ionosphere. So, do we know if my report was a long-path or a short-path? Not really. Based on the time of day, there's a good chance that it was a long-path report, but only if we actually measure the delay between send and receive will we have data to make a better assurance than "possibly" or "probably". As I started, propagation is an art. I'm Onno VK6FLAB

QSL courtesY of The Radio Heritage Foundation Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:"You are tuned to ABC Radio in Papua New Guinea; 9PA, VLT, and VLK..." This is the announcement from VLT4, the Australian Broadcasting Commission station in Port Moresby on 4890 kHz shortwave, on May 3, 1971 at 1100 hours UTC. A musical request program is ending, then station ID as above and into ABC national news. This was before independence in PNG. The station used a 10 kw transmitter on this frequency and could sometimes be heard in eastern North America with a readable signal.Broadcaster: VLT4 ABC Radio Port Moresby Papua New GuineaDate of recording: 5/3/1971Starting time: 1100Frequency: 4.890Recption location: Ancaster, Ontario, CanadaReceiver and antenna: Hallicrafters S-52 using a longwire antenna

C'est autour de la 28ème semaine de grossesse que le foetus commence à montrer des réactions face aux stimuli sonores perçus dans son environnement. On conseille d'ailleurs aux femmes enceintes d'éviter les milieux exposés au bruit comme les concerts ou les discothèques à partir du 3ème trimestre, car l'ouïe de bébé en plein développement pourrait en subir les conséquences. La membrane qui entoure le foetus le protège des fréquences aigues, mais elle laisse passer les fréquences basses : bébé aura tendance à réagir plus virulemment si vous lui faites écouter une marche funèbre que si vous optez pour l'air de la Reine de la Nuit. Mais si les enfants qui disposent de toutes leurs facultés auditives sont capables d'entendre des sons variés dont la fréquence va de 20 Hz à 20 000 Hz, les adultes qui atteignent la trentaine voient progressivement leur capacité auditive se transformer. Comment l'oreille humaine perçoit-elle les sons ? Pour faire très simple, un son est une vibration qui se propage dans l'air, mais aussi à travers les personnes, les objets et les bâtiments. Afin de caractériser et différencier les sons, on utilise la notion de fréquence. Celle-ci détermine le nombre de fois où la vibration se produit sur une durée d'une seconde. Si la vibration se produit une fois, la fréquence est déterminée à 1 Hz. Chez l'homme, chaque onde sonore présente dans l'environnement arrive au-niveau du tympan, une membrane qui vibre de la même façon que l'onde. Les osselets, de minuscules os présents dans l'oreille, transmettent le signal jusqu'à la cochlée, une structure qui comporte des cellules ciliées. Ces cellules sont réparties de différentes façons afin de capter les fréquences les plus extrêmes du spectre audible par l'homme. Les enfants peuvent entendre les sons jusqu'à 20 000 Hz de fréquence La limite basse en-dessous de laquelle nous n'entendons pas les sons est d'environ 20 Hz. Les infrasons, situés sous cette valeur, sont inaudibles pour les adultes comme pour les enfants. En revanche, en ce qui concerne la limite haute, les enfants perçoivent des sons d'une fréquence pouvant aller jusqu'à 20 000 Hz, tandis que le adultes perdent progressivement cette capacité. On estime ainsi qu'une personne de 40 ans n'entend plus les fréquences au-dessus de 17 ou 18 kHz. Ce phénomène naturel de dégénérescence des capacités auditives s'appelle la presbyacousie. Les personnes âgées y sont les plus sensibles : elles n'entendent plus bien les sons à fréquence élevée. Cela s'explique par le fait que les cellules qui captent les aigus sont situées à l'avant de la cochlée, et se détériorent donc en premier. Les adultes subissent aussi une altération des sons dont la fréquence se situe entre 3000 Hz et 6000 Hz. Autrement dit, plus l'on vieillit, plus la différence est marquée entre ce que nous entendons et ce que les enfants perçoivent. Peut-on chanter à une fréquence que l'on n'entend pas ? Oui ! Tim Storms détient l'actuel record du monde de la note chantée la plus basse, qui s'établit à 0,189 Hz, donc bien en-dessous du seuil de 20 Hz. Les enfants comme les adultes sont incapables d'entendre une telle note. Learn more about your ad choices. Visit megaphone.fm/adchoices

The topic of AM radio in the automobile is a hot one. Sen. Ed Markey (D-Mass.) wants AM radio to remain in the electric vehicle and has called on manufactuers to mitigate interference to kHz-based broadcasts. The New York Times has covered the subject. But, what are actual AM radio station leaders doing to ensure their survival?Marc Beaven, GM of WCBM-AM and WQLL-AM in Baltimore, shares his thoughts with Adam R Jacobson in this InFOCUS Podcast, presented by dot.FM.

Esperanza Base seen from Hope Bay (Image source: NOAA) Many thanks to SRAA contributor, Dan Greenall, for sharing the following recording and notes:Notes: After many tries, this one was finally logged while on a "DXpedition" to a cottage near Bancroft, Ontario. Here is LRA36, Radio Nacional Arcangel San Gabriel from Esperanza Base, Antarctica as recorded in Coe Hill, Ontario, Canada on February 20, 1999 at 2257 hours UTC on 15476 kHz shortwave. They are heard giving announcement in Spanish including station ID, frequency used and transmitter power (10 kilowatts). This station was usually not audible at all or too buried under the noise level, however, on this occasion, the signal came up enough to get a clear ID.Broadcaster: LRA36 Radio Nacional Arcangel San Gabriel, Base Esperanza, AntarcticaDate of recording: 2/20/1999Starting time: 2257Frequency: 15.476 MHzReception location: Coe Hill, Ontario, CanadaReceiver and antenna: Panasonic RF-3100 and longwire antenna

This is the third episode of a three-part series about sonic tactics, and it's been quite a journey. So far, I've talked about how animals use sound in the wild, from spiders doing wasp impressions to sperm whales whose calls can be deadly at close range, and how people in the past have learned to harness the power of sound on the battlefield, such as chasing off war elephants with the help of squealing pigs. We'll be taking a look in this episode at audio conflict as it exists today, and just what the future might hold when it comes to sound's growing potential for both good and harm.One of the oldest and simplest uses of sound in modern combat is one that might seem familiar to exasperated parents: playing music too loud. When used on prisoners in captivity, such treatment can amount to torture, and it's been recognized as such by the United Nations. Loud music has also been used as a police tactic for dispersing crowds, where it's had more mixed results: protesters have proven just as likely to start singing along with "Baby Shark" or Frozen's "Let It Go" as they are to run away. There can also be a cultural element to such tactical music: South Korea spent more than two years blasting K-pop songs along the border, a move that outraged North Korea so much it threatened to launch missiles at the speakers. The music only stopped in 2018 ahead of a peace summit.Audio technology is constantly changing, though, and now it can be used to hone in on more precise targets than ever before. In 2005 Howard Stapleton patented the Mosquito machine, a crowd control device that's aimed specifically at teenagers. As adults, we gradually lose our hearing thanks to the everyday wear and tear on our auditory nerves, and the first things to go are the higher frequencies. That means there are sounds children and teenagers can hear that, for the most part, adults can't detect. The Mosquito uses one of those sound frequencies – 17.4 kHz, to be exact – at 108 decibels, the same volume as a rock concert, to drive teenagers away from storefronts and public places.But, much like those crowds singing along to the music they're supposed to hate, the Mosquito frequency's turned out to be just as useful to the teens it's meant to chase off. Smartphone apps have been developed since then that use the same sound as a kind of secret ringtone, so students can use their phones in class without their teachers hearing them. Want to test your ears and find out if you have the hearing of an eighteen-year-old? Check out my blog for a link to the Mosquito tone, but be sure to use a pair of high-quality headphones. Some speakers can't even play back such a high frequency:https://www.youtube.com/watch?v=IrewnzQYrPIAs digital sound's become more and more important in our lives, our ability to direct and use it with laser-like precision has also grown. One of the most widespread and contentious uses of sound in the twenty-first century is the sound cannon or LRAD (el-rad) system, short for "long-range acoustical device." It uses interference waves to create narrow beams of focused sound that can travel up to five kilometers and was originally meant as a substitute for radio contact between sea vessels in an emergency. LRADs can relay public broadcasts, or, by switching on the siren and setting the volume to maximum, disperse crowds or subdue targets. It's been used around the world for everything from evacuation notices to scaring off animals to repelling pirate attacks on the high seas.Over the past few years, the LRAD's potential as a sonic weapon against peaceful protesters has generated controversy, and questions have been raised about whether the sound beam – which, at up to 160 decibels on military-grade models, can be louder than a jet engine – might cause permanent hearing loss. Its merits as both an audio...

Grimeton Radio Live, off-air, recording of a morse code (CW or continuous wave) transmission in English from station SAQ, Grimeton Radio, Sweden, on 16 November 2022 beginning at 16:00 UTC on a very low frequency (VLF) of 17.2 kHz. The signal originates from the historic Alexanderson alternator transmitter at Grimeton near Varberg on the southwest coast of Sweden, running at about 80 kW. The antenna is essentially omnidirectional.The transmitter was tuned up before the broadcast with many sequences of VVV VVV VVV DE SAQ SAQ SAQ being sent. The message, titled UNESCO 50th Anniversary Telegram, began at 16:00 UTC, lasted about 9 minutes and 30 seconds, and is as follows:CQ CQ CQ DE SAQ SAQ SAQQ THIS IS GRIMETON RADIO STATION SAQ IN A TRANSMISSION USING THE ALEXANDERSON 200 KW ALTERNATOR ON 17.2 KHZ. THE 16TH OF NOVEMBER 2022 MARKS THE 50TH ANNIVER4RY OF THE WORLD HERITAGE CONVENTION. UNESCO WORLD HERITAGE SITES ARE IRREPLACEABLE ASSETS OF HUMANITY BUT MANY OF THEM ARE THREATENED TODAY THROUGH UNCONTROLLED URBANIZATION, UNCHECKED TOURISM, ARMED CONFLICT AND CLIMATE CHANGE. TO ENSURE THEIR PROTECTION,INTERNATIONAL COOPERATION TO PROMOTE PEACE, INTERNATIONAL UNDERSTANDING AND SUSTAINABLE DEVELOPMENT IS MORE IMPORTANT THAN EVER. SIGNED: LENA SOMMESTAD, CHAIR SWEDISH NATIONAL COMMISSION FOR UNESCO, WORLD HERITAGE GRIMETON RADIO STATION AND THE ALEXANDER-GRIMETON FRIENDSHIP ASSOCIATION. FOR QSL INFO PLEASE READ OUR WEBSITE: WWW.ALEXANDER.N.SE DE SAQ SAQ SAQ Note that indicates the start of a new paragraph; means end of transmission; and means end of work.The broadcast was received by the Web-interface wideband software-defined radio at the University of Twente in Enschede, The Netherlands, with a "Mini-Whip" antenna in CW mode with 0.40 kHz RF filtering and real-time noise reduction. The CW tone is about 760 Hz and the message was sent at about 15 words per minute. Reception was fairly good with some occasional atmospheric noise (QRN).

„Az alábbi professzionális minőségű (24 bit CPM, 44,100 KHz, 2067 kbps) felvétel 2022. november 7-én 11:30 és 12:29 között készült egy Király utcai lakásban, zárt ablaknál, professzionális Shure SM57-es dinamikus hangszermikrofonnal és Audient iD4 audiointerfésszel. A hangzó anyag tökéletes élvezetéhez erősen ajánlott high-end audiofil (professzionális) audio equipment (pl. Meze Empyrean izodinamikus hybrid array, esetleg Focal Utopia fejhallgató) és professzionális fejhallgató-erősítő (pl. Naim Uniti Atom, TEAC UD-701N, stb.).” A 444 heti rendszerességgel jelentkező, 1 órás podcastje az (előző) állampárti rendszer televíziójának hétfői adását aktualizálva gerjeszti a médiazajt.See omnystudio.com/listener for privacy information.

RIAS BUILDING IN BERLIN WITH NEON LOGOS NOW USED BY DEUTSCHLANDRADIO (AVDA, WIKIMEDIA) Live, off-air, approximately 45-minute recording of RIAS, Rundfunk im amerikanischen Sektor, on 22 October 1992 beginning at about 23:15 UTC on 6005 kHz. The signal was broadcast from a 100-kW transmitter in the Britz suburb of Berlin, Germany, using an essentially non-directional antenna.RIAS began operations as the wired station Drahtfunk im amerikanischen Sektor on 7 February 1946 and began its radio life on 5 September 1946. On 1 January 1994, RIAS was merged into DeutschlandRadio Berlin.The recording starts with a program of jazz music in progress. Initially, there is a heterodyne of approximately 520 Hz from a co-channel transmitter. At about the 12m:30s mark of the recording, the heterodyne disappears. This might be related to receiver adjustments. At the 15m:50s mark in the recording, station identification is given as "RIAS, Berlin" followed by "Nachrichten" (news). This is followed by autobahn news (preceded by the alert tone) and the program "Nightline." At about the 22m:30S mark of the recording, a new heterodyne appears with a frequency of about 850 Hz but it lasts for only about 30 seconds. This is during a program of pop music. At about the 40m mark of the recoding, the Bow Bells interval signal of the BBC World Service begins in advance of a co-channel transmission to South America from a transmitter at Ascension followed by station identification and the Lilliburlero signature tune.In the audio file, the 520-Hz heterodyne has been notched out and the audio levels somewhat normalized to make listening a bit more enjoyable. Reception of the broadcast was fairly good apart from the heterodynes.The broadcast was received in Hanwell, New Brunswick, Canada, using a JRC NRD-535D receiver operated with a 6 kHz IF filter and with a random-length wire antenna draped around the listening room.Thanks to Wolfgang Bueschel for help with documenting this recording.

You can hear my new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM GMT Friday 6 PM CET Friday 7 PM EET Friday 8 PM MSK Friday 9 PM SAMT Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!

Official Website: https://www.lawabidingbiker.com In this episode, I'm joined by Lurch and we talk about the new Harley Davidson Icon release; the Low Rider ST El Diablo.  We also talk about the all-new Enthusiast Collection.  This particular collection celebrates those who have and continue to serve in the U.S. Military.  On top of these releases, we chat about the recent installation of Boss Audio saddle bag lid speakers on a 2017 Street Glide.  We've tested the Boss Audio saddle bag speaker kit and found it to be loud, crisp, and clean.  We used a decibel meter to measure the sound and it was in line with other available top-brand audio systems.   The kit includes: Pair of Full Range 6" x 9" 2-Way Speakers 300 Watts MAX 150 Watts RMS Power Handling per Pair 50 Hz to 20 kHz Frequency Response and 92dB Sensitivity Poly Injection Woofer Cone and Rubber Surround 1 Tweeter Per Speaker Sold in Pairs SUPPORT US AND SHOP IN THE OFFICIAL LAW ABIDING BIKER STORE This Icon is an extraordinary series of Harley-Davidson motorcycles inspired by the most recognizable and sought-after models. Each Icon in the collection celebrates our signature colors, designs, and parts and merges them with the latest technology. These bikes are limited-edition numbered motorcycles produced only once. A new Icon will debut annually.  A modern expression of the iconic 1983 Harley-Davidson FXRT and representation of the custom movement it ignited that lives on to this day, the 2022 Low Rider El Diablo embodies the spirit of counterculture in Southern California in the ‘80s in a contemporary package that includes meticulously crafted custom paint and high-performance audio from Rockford Fosgate, each one individually serialized. CHECK OUT OUR HUNDREDS OF FREE HELPFUL VIDEOS ON OUR YOUTUBE CHANNEL AND SUBSCRIBE! The Enthusiast Collection is an ongoing collection of Harley-Davidson® motorcycles inspired by our community of passionate riders, the Enthusiast Collection celebrates the diversity of our community and the unique backgrounds and interests of the people within it. Launched annually, each series pays tribute to a subset of our broader community of riders, available in limited quantities across a selection of models. The 2022 G.I. Enthusiast Collection honors Harley-Davidson's longstanding community of riders who have and continue to serve in the US Armed Forces. These limited-edition motorcycles are draped in stunning Mineral Green Denim Deluxe paint with graphics exclusively featured on the Pan America 1250 Special and Tri Glide Ultra. NEW FREE VIDEO RELEASED: NEW FREE VIDEO: Harley's Deal With The Devil! El Diablo Check out Episode 307 of the podcast where we discuss the installation and a full review of the Boss Audio BHD3F audio system in a 2017 Harley Street Glide. This package fits 1998+ Electra, Road Glide, and Street Glide Motorcycles. It has a 4 Channel 600W High Output Amplifier with 6.5 Inch Full Range 300W Speakers 300 Watt Max full range weatherproof 6.5” speakers 600 Watt compact weatherproof 4 channel/class D amplifier with model-specific amplifier mounting plate Speaker Grille Options – (2) 1998-2013 Electra, (2) 2014+ Street Glide, (2) 2015+ Road Glide Impedance: 4 Ohms, Frequency: 100 Hz to 18 kHz, Sensitivity: 90 dB 1” (25mm) dome tweeter Loud and crisp speakers feature a rubber surround, poly injection cone, and a stamped steel basket Professional re-flash of your factory radio is necessary after speaker installation in order to avoid speaker damage and obtain the correct/optimal sound quality and performance Current price of $569.00 Sponsor-Ciro 3D CLICK HERE! Innovative products for Harley-Davidson & Goldwing Affordable chrome, lighting, and comfort products Ciro 3D has a passion for design and innovation Sponsor-RickRak CLICK HERE The Ultimate Motorcycle Luggage Rack Solution Forget those messy straps and bungee cords Go strapless with a RickRak quick attach luggage system & quality bag Sponsor-Butt Buffer CLICK HERE Want to ride longer? Tired of a sore and achy ass? Then fix it with a high-quality Butt Buffer seat cushion? New Patrons: Timo Sturtevant of Milford, New Hampshire Terry Reeves of Lafayette, Louisiana Aaron Ross of Tuolumne, California Jeff Bacon of Thetford, United Kingdom Roger Brown of Cornelius, Oregon Ben Atchley of Charleston, Tennessee If you appreciate the content we put out and want to make sure it keeps on coming your way then become a Patron too! There are benefits and there is no risk. Thanks to the following bikers for supporting us via a flat donation: Charles Strong of Byron, Georgia Gary Greenbaum Palm Springs, California Peter Hando ________________________________________________________ FURTHER INFORMATION:   Official Website: http://www.LawAbidingBiker.com   Email & Voicemail: http://www.LawAbidingBiker.com/Contact   Podcast Hotline Phone: 509-731-3548 HELP SUPPORT US! JOIN THE BIKER REVOLUTION! #BikerRevolution #LawAbidingBiker

Béjaïa, Algeria (Photo by Walid Amghar) Many thanks to SRAA contributor, Paul Walker, who shares the following recording of Radio Algerienne made on July 29, 2022 starting at 2038 UTC on 15,100 kHz. This recording was made by Paul in McGrath, Alaska.

An update on the impact from Hurricane Ian. You can hear my new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM British Summer Time Friday 7 PM Eastern European Summer Time Friday 8 PM Samara Time Friday 10 PM Alma-Ata Time Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!

The following recording was made on September 28, 2022 starting at 1157 UTC on 7268 kHz (lower sideband).At this time, Hurricane Ian hit the Florida coast as a category 4 storm and had been downgraded to a tropical storm over the Florida peninsula. This recording was made using a WinRadio Excalubur software defined radio connected to a skyloop antenna near Asheville, North Carolina.

Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:Broadcaster: Radio Christian Voice, Lusaka, ZambiaDate of recording: 10/14/1996Starting time: 0400 UTCFrequency: 3.330 MHzRX location: Thamesford, Ontario, CanadaReceiver and antenna: Panasonic RF-3100 and longwire antennaMode: AMNotes: Tough to log here in southern Ontario, Canada, Radio Christian Voice from Lusaka, Zambia was operating on the same frequency as time signal station CHU, Ottawa, Canada. Here is what 3330 kHz sounded like on October 14, 1996 around 0400 UTC. A good station ID from Radio Christian Voice can be heard in spite of the time beep interference from CHU.

This recording was made on September 8, 2022 at 1959 UTC on 12095 kHz using GPD MicroPC, AirSpy Mini, SpyVerter 2, Wellbrook UMB130 balun and a 2x6m dipole. Demodulation and additional signal audio enhancement was performed in SDR#.

Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:Broadcaster: Malawi Broadcasting CorporationDate of recording: 6/1/1997Starting time: 0400 UTCFrequency: 3.380 MHzRX location: Thamesford, Ontario, CanadaReceiver and antenna: Panasonic RF-3100 and longwire antennaNotes: Back in the days before the internet, tuning into a radio broadcast from a far away land was often the closest many of us would ever get to that particular country. Still, some of these radio visits were not easy. The Malawi Broadcasting Corporation from Blantyre on 3380 kHz was a rare visitor to my listening post. I managed this brief recording on June 1, 1997 around 0400 UTC. My receiver location was Thamesford, Ontario, Canada. In the first clip, "This is the M.B.C. and the time is 6 'oclock" can be heard. A second clip is then blended in where you can here a jingle and promotional announcement regarding "a shared vision for a country (Malawi)".

Omega-3 fatty acid supplementation could help with cognitive depression Duke University, August 27 2022.    An article appearing in the Journal of the American College of Cardiology: Heart Failure reported the outcome of a pilot study that found an association between supplementation with the omega-3 fatty acids EPA and DHA and reduced cognitive depression in heart failure patients. Cognitive depression is characterized by subjective symptoms such as pessimism and sadness, while somatic depression includes physical manifestations that include fatigue and sleep disturbances. The study included 108 patients with a major depressive disorder, chronic heart failure and low blood levels of omega-3 fatty acids. Participants received fish oil containing EPA and DHA, a high EPA supplement or a placebo daily for 12 weeks. Blood samples collected before and after treatment were evaluated for red blood cell EPA and DHA, the Omega-3 Index and other factors. Omega-3 values increased in both the EPA/DHA and EPA only groups, while the placebo group showed little change. Higher omega-3 Index values were associated with lower cognitive depression scores. Social functioning as evaluated by a general health survey significantly improved with EPA/DHA supplementation and showed a tendency toward improvement in the high EPA group. "This was a study in already depressed individuals, which meant the researchers are looking to high-dose (although it could have been higher) omega-3 supplements to improve depressive symptoms, like a drug," noted coauthor William S. Harris, PhD. "Generally, we think of the function of omega-3s as preventative rather than as treatment. If used as treatment, the dose must be fairly high (4 grams is a typical 'drug' dose) and blood levels must be measured.”   Groundbreaking Study Shows Fasting Can Slow Aging, Rebuild Immune System University of Southern California, August 28, 2022 Cutting-edge research reveals that occasionally adopting a diet that mimics the effects of fasting may provide dramatic health benefits. “Fasting flips a regenerative switch essentially regenerating the entire immune system. It gives the OK for stem cells to go begin proliferating and rebuild the entire system,” said Prof Valter Longo, Professor of Gerontology and the Biological Sciences at the University of California. A study, led by USC's Dr. Valter, revealed that a “cycles of a four-day low-calorie diet that mimics fasting (FMD) cut visceral belly fat and elevated the number of progenitor and stem cells in several organs of old mice — including the brain, where it boosted neural regeneration and improved learning and memory,” according to USC News. Dr. Longo notes that strict fasting can be difficult for people to adhere to, and also has the potential to be dangerous, while pointing out that a fasting mimicking diet is much safer and easier. “Strict fasting is hard for people to stick to, and it can also be dangerous, so we developed a complex diet that triggers the same effects in the body,” said Longo, Edna M. Jones Professor of Biogerontology at the USC Davis School of Gerontology and director of the USC Longevity Institute. “I've personally tried both, and the fasting mimicking diet is a lot easier and also a lot safer.” The fasting mimicking diet cuts a person's daily caloric intake over the fasting period down to 34 to 54 percent of their daily average, with a specific balance of micronutrients, fats, carbohydrates, and proteins. In previous groundbreaking research, Longo has shown how fasting can protect immune and other cells from chemotherapy toxicity, while simultaneously starving out cancer cells. Fasting for seventy-two hours protected cancer patients against the toxic impact of chemotherapy: “The good news is the body got rid of the parts in the system which might be damaged or old and inefficient parts, during the fasting. If you start with a system heavily damaged by chemotherapy or aging, fasting cycles can generate, literally, a new immune system,” he said. “It's about reprogramming the body so it enters a slower aging mode, but also rejuvenating it through stem cell-based regeneration,” Longo said. “It's not a typical diet because it isn't something you need to stay on.” “If the results remain as positive as the current ones, I believe this FMD will represent the first safe and effective intervention to promote positive changes associated with longevity and health span, which can be recommended by a physician,” Longo told USC News. “We will soon meet with FDA officers to pursue several FDA claims for disease prevention and treatment.”     “Micro-breaks” from tasks show promise in boosting wellbeing   West University of Timioara (Romania), August 31, 2022 A review of 22 previously published studies suggests that taking micro-breaks—discontinuing a task for periods of 10 minutes or less—is generally associated with reduced fatigue and increased vigor. Patricia Albulescu of the West University of Timioara, Romania, and colleagues present these findings in the open-access journal PLOS ONE . Concerns are rising over the heavy workloads and long shifts faced by many employees currently in the work force. An increasing number of studies explore various aspects of employee energy management and recovery, often focused on recovery after the workday is over. However, the potential effects of recovery processes during the workday remain unclear. To improve understanding, Albulescu and colleagues conducted a meta-analysis of 22 studies from 19 manuscripts published within the last 30 years, all of which examined the potential benefits of taking micro-breaks from assigned tasks. Tasks varied between experiments and included work simulations, real work-related tasks, and non-work-related cognitive tests. Types of breaks varied as well, including physical breaks, relaxing activities, and more engaging activities, such as watching videos. Statistical analysis of the combined study results revealed an overall association between micro-breaks, higher levels of vigor, and lower fatigue in participants, suggesting that micro-breaks may contribute to wellbeing. These findings support micro-breaks as a potential strategy for boosting wellbeing in the workplace. However, when it comes to job performance, longer breaks may be needed for recovery from more cognitively demanding tasks. Future research could investigate longer breaks as well as address other remaining questions, such as optimal activities to engage in during a micro-break.     Mindfulness training improves diabetes symptoms and blood sugar levels VA Healthcare System in Pittsburg, August 24, 2022 It's easy to let current circumstances in our lives dictate our thoughts and feelings. When a problem arises, if we get sick, we are quick to blame it on anything but ourselves. In this way, we are undermining the power of our own thoughts and intentions at work, in us and around us, guiding our present reality. Instead of letting negative circumstances and illness just happen to us, we should embrace the power of mindfulness, allowing ourselves to instead happen to the universe around us. The awareness of our bodily functions, our breathing, our thinking, our motives and the way we treat others helps us be mindful and aware, putting us in the driver seat of determining our paths through life. Research recently presented at the American Association of Diabetes Educators Annual Meeting & Exhibition showed that positive mindfulness training can help improve diabetes symptoms and blood sugar levels. The research was carried out on 28 veterans with type 1 and type 2 diabetes at the VA Healthcare System in Pittsburgh, Pennsylvania, as part of the Mindful Stress Reduction in Diabetes Education program (Mind-STRIDE). Diabetes-related stress falls significantly in veterans during mindfulness training and deep breathing meditation   Veterans' glucose levels drop dramatically as diabetes-related distress falls 41 percent The changes over the course of the training were significant. Three months after mindfulness training, diabetes-related distress for all 28 veterans fell 41 percent! A1C levels dropped significantly, almost measuring under the ideal 7.0 range. They went from 8.3 before the mindfulness training to 7.3 after the classes. On top of that, veterans completed diabetes self-management goals with more efficiency after the training. They were better problem solvers, began to eat healthier, were more active and coped better with stress.       An Oral Combination of Vitamins A, C, E, and Mg++ Improves hearing University of Castilla (Spain), August 28, 2022 According to news reporting originating in Albacete, Spain,research stated, "The increasing rate of age-related hearing loss (ARHL), with its subsequent reduction in quality of life and increase in health care costs, requires new therapeutic strategies to reduce and delay its impact. The goal of this study was to determine if ARHL could be reduced in a rat model by administering a combination of antioxidant vitamins A, C, and E acting as free radical scavengers along with Mg, a known powerful cochlear vasodilator (ACEMg)." The news reporters obtained a quote from the research from the University of Castilla, "Toward this goal, young adult, 3 month-old Wistar rats were divided into two groups: one was fed with a diet composed of regular chow ('normal diet,' ND); the other received a diet based on chow enriched in ACEMg ('enhanced diet,' ED). Auditory brainstem recordings (ABR) were performed at 0.5, 1, 2, 4, 8, 16, and 32 kHz at 3, 6-8, and 12-14 months of age. No differences were observed at 3 months of age, in both ND and ED animals. At 6-8 and 12-14 months of age there were significant increases in auditory thresholds and a reduction in the wave amplitudes at all frequencies tested, compatible with progressive development of ARHL. However, at 6-8 months threshold shifts in ED rats were significantly lower in low and medium frequencies, and wave amplitudes were significantly larger at all frequencies when compared to ND rats. In the oldest animals, differences in the threshold shift persisted, as well as in the amplitude of the wave II, suggesting a protective effect of ACEMg on auditory function during aging."   According to the news reporters, the research concluded: "These findings indicate that oral ACEMg may provide an effective adjuvant therapeutic intervention for the treatment of ARHL, delaying the progression of hearing impairment associated with age."       Scientists use 'sleep age' to infer long-term health Stanford University, September 1, 2022   Sleep age is a projected age that correlates to one's health based on their quality of sleep. So for instance, if you analyze the sleep characteristics of dozens of 55-year-olds and average them out, you'll have an idea of what sleep looks like at that age. For instance, someone who's 55 and sleeps soundly through the night with good quality REM cycles could, theoretically, might have a sleep age of 45. Sleep expert Emmanuel Mignot, MD, Ph.D., and his colleagues analyzed some 12,000 studies, each of which focused on an individual, that reported characteristics of their sleep—such as chin and leg movement, breathing and heartbeat. Their goal was to develop a system that assigns one's sleep age and, using machine learning, identifies the variations in sleep most closely linked to mortality. I spoke with Mignot, who has studied sleep for 30 years, about why sleep age is important, how it's calculated and what the study's findings imply about our health. Why study sleep age? When you sleep, you're disconnected from sensory inputs—you're, ideally, not being bothered by the noisy external world or bright lights. During sleep, it's not just the brain that's going through an automatic program, but heart rate and breathing also change, and variations in these can be early predictors of a health disturbance. We spend about a third of our lives sleeping, so it's a substantial component of our general well-being. It's well known that, in pretty much any disorder, sleep is one of the first things that is disturbed. For example, about five or 10 years before other symptoms appear in Parkinson's disease patients, a specific sleep disturbance occurs during which the patient violently acts out dreams, shouts or punches into a wall. What was the most important finding from the study? Our main finding was that sleep fragmentation—when people wake up multiple times throughout the night for less than a minute without remembering it—was the strongest predictor of mortality. Though we see a link in the data, how it contributes to mortality is unknown. This is different from a person realizing they were waking up, which happens during sleep disorders such as insomnia. Determining why sleep fragmentation is so detrimental to health is something we plan to study in the future. Can we measure our own sleep age? Can it be improved? The code is available for physicians and researchers, but the average person would likely have trouble running it through a computer. Regardless, it's not deterministic. There is enormous variation. Even if you have an older sleep age than your chronological age, it doesn't mean that your mortality risk is going to be higher. You see people chain smoking and drinking alcohol at 90 years old and you wonder, "How is this person surviving so long?" There is always huge natural variation. Going to bed and waking up at regular hours is a key to improving your sleep. This means not oversleeping but ensuring you're fully rested. It's a different amount for everyone and often the window varies slightly—for example, being a night owl versus an early bird. Getting solid light exposure—preferably with outside light—during the day, keeping the sleep environment dark at night, exercising regularly but not too close to bedtime, not drinking alcohol and caffeine around bedtime, and avoiding heavy nighttime meals all contribute to healthy sleep. And, of course, make sure any sleep disorder is treated. We found that people with older sleep ages compared to their actual age are at an increased risk of mortality, based on the sleep of patients who later died. From other studies, we know that poor sleep is found in a variety of conditions such as sleep apnea, neurodegeneration, obesity and chronic pain. How poor sleep causes, exacerbates or results from these conditions is unknown.

You can hear my new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM British Summer Time Friday 7 PM Eastern European Summer Time Friday 8 PM Samara Time Friday 10 PM Alma-Ata Time Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!

Many thanks to SRAA contributor, Paul Walker, who shares this recording of Deutsche Welle made on June 11, 2022 at 1515 UTC on 15195 kHz. The reception location was McGrath Alaska and receiver an ATS-25 paired with a loop antenna.

Live off-air recording of the final two hours of the shortwave transmissions of the Hellenic Broadcasting Corporation's (ERT's) Voice of Greece (I Foni tis Elladas) on 15 June 2022 on a frequency of 9420 kHz. Also known as ERA 5, the Voice of Greece broadcast its programs from Avlis about 50 km north-east of Athens using a transmitter with a registered power of 150 kW with an antenna beam of 323° towards western Europe. Avlis had a large transmitting complex with multiple transmitters and antennas but at the end of its service was reduced to just one operational transmitter.The Voice of Greece continues to be available via Internet streaming and satellite.The recording, all in Greek, starts with a time check, the beginning of the Voice of Greece interval (tuning) signal with station identification. At just after 16:00 UTC, there is news from ERA 1, the Proto Programma network, before returning to Voice of Greece programming. At the end of the recording, there is the short interval signal and identification of the Voice of Greece just before the transmitter leaves the air. The broadcast was received by the Web-interface wideband software-defined radio at the University of Twente in Enschede, The Netherlands, with a "Mini-Whip" antenna in synchronous AM mode with 5.08 kHz total bandwidth RF filtering. Reception of the broadcast was good with some fading at times and with some slight co-channel interference from a Chinese transmitter especially after 16:00 UTC.

Many thanks to SRAA contributor, Paul Walker, who shares the following recording of Rádio Nacional da Amazônia.This recording was made on July 8, 2022 in McGrath, Alaska, on 11,780 kHz. Paul used an ATS25 receiver paired with a magnetic loop antenna (see photo above).

This week we discuss Bluetooth getting it's biggest upgrade in years, NFL+ launching it's own streaming service and Braden tells us if his new speakers were worth the wait. Plus we read your emails and news of the week. News: It looks like the next Apple TV 4K might be ready to go 8K LG And Samsung's Next-Gen OLED TV Price War Is On, And We're All Winners Comcast may buy set-makers to boost smart TV efforts ‘Stranger Things' Keeps Top Spot on Parrot Analytics Demand Chart Bluetooth is getting the biggest upgrade in years This latest evolution to the Bluetooth specification known as Auracast enables Bluetooth streaming “to an unlimited number of nearby audio devices." - This has so many cool uses. Imagine being at an airport gate and being able to connect your headphones to your particular gate announcements. That way you never have to wonder if the last call to board that you just heard was for your flight or for the gate across the way.  But more traditionally you can share your music with friends headphones or you can listen to the audio of a TV in a sports bar.   There is also the new LC3 codec, which is designed to be a much more efficient way to transmit audio. That either means much higher audio quality at the same bit rate than the current baseline SBC codec, or even slightly better audio quality at less than half the bit rate. A lower bit rate means lower power consumption, which should translate to longer battery life. This would be nice if you can decide which way to go. If you were going for a long bike ride you may forgo the highest quality for longer battery life.  Other features include better support for true wireless earbuds, since Bluetooth LE Audio allows each individual earbud to maintain its own separate connection with the source device. And it's also hoped that, combined, all LE Audio's features will serve as a massive benefit for future hearing aids. The last thing that is left is whether or not it will be integrated into existing devices. While it may be possible to add support for Bluetooth LE Audio through updates in the present devices, most people might have to purchase better hardware. NFL+ The National Football League (NFL) has launched its own streaming service called NFL+. Beginning with the 2022 season. There are two subscription options for NFL+. The basic plan costs $4.99 per month or $29.99 per year.  Live out-of-market Preseason games across devices Live local and primetime Regular Season & Postseason games on your phone or tablet Live game audio for every game (Home, Away, and national Calls) NFL Library programming on-demand, ad-free For $9.99 per month or $79.99 per year, the NFL+ Premium gives you all the features of the basic tier plus some extras.  Condensed game replays across devices (ad-free)  Coaches Film (which lets fans study the game in-depth) Braden's New Speakers Braden took delivery of his new speakers (CSS Criton 2TD-X Tower Kit MSRP $1074) this week and we get his thoughts on hs Historic Speakers.  Specifications: Crossover Point: 1800 Hz Recommended Power: 20-100 watts Nominal Impedance: 6 Ohm Frequency Response:  +/- 1.5 dB from 35 Hz to 17 kHz anechoic  +/- 3 dB from 30 Hz to 20 kHz anechoic  20 Hz to 20 kHz in room Sensitivity: 90 dB External Dimensions: 44"H x 8.5"W x 10.5"D (111cm H x 21.5cm W x 26.6cm D) Weight 36 lbs (16.3Kgs) each

Official Website: In this episode, I'm joined by Lurch and we discuss the recent installation of a Boss Audio BHD3F audio system in a 2017 Harley Street Glide. This package fits 1998+ Electra, Road Glide, and Street Glide Motorcycles. It has a 4 Channel 600W High Output Amplifier with 6.5 Inch Full Range 300W Speakers 300 Watt Max full range weatherproof 6.5” speakers 600 Watt compact weatherproof 4 channel/class D amplifier with model-specific amplifier mounting plate Speaker Grille Options – (2) 1998-2013 Electra, (2) 2014+ Street Glide, (2) 2015+ Road Glide Impedance: 4 Ohms, Frequency: 100 Hz to 18 kHz, Sensitivity: 90 dB 1” (25mm) dome tweeter Loud and crisp speakers feature a rubber surround, poly injection cone, and a stamped steel basket Professional re-flash of your factory radio is necessary after speaker installation in order to avoid speaker damage and obtain the correct/optimal sound quality and performance Current price of $569.00 SUPPORT US AND SHOP IN THE OFFICIAL LAW ABIDING BIKER STORE Boss Audio sent us this kit to review.  We were impressed with the build quality and the multiple mounting options of the kit.  Installation is a breeze using our complete installation video.  We show you everything you need to know, including how to flash your Boom Box unit.   CHECK OUT OUR HUNDREDS OF FREE HELPFUL VIDEOS ON OUR YOUTUBE CHANNEL AND SUBSCRIBE! In the end, we were highly impressed with the Boss Audio BHD3F system.  We were so impressed that we decided to sell the system right in the Law Abiding Biker Store.  The BHD3F is a clean and loud system for a budget-friendly price.  It's almost half the cost of some of the more expensive systems.   NEW FREE VIDEO RELEASED: How To Install A Boss Audio Front Speakers & Amplifier on a Harley-Davidson Sponsor-Ciro 3D CLICK HERE! Innovative products for Harley-Davidson & Goldwing Affordable chrome, lighting, and comfort products Ciro 3D has a passion for design and innovation Sponsor-RickRak CLICK HERE The Ultimate Motorcycle Luggage Rack Solution Forget those messy straps and bungee cords Go strapless with a RickRak quick attach luggage system & quality bag Sponsor-Butt Buffer CLICK HERE Want to ride longer? Tired of a sore and achy ass? Then fix it with a high-quality Butt Buffer seat cushion? New Patrons: David Dulley of London, UK Scott Nelson of Annandale, New Jersey Karsten Jørgensen of Glostrup, Denmark Jon Yant of Piqua, Ohio Doug Partridge of Saranac Lake, New York Greg Stenzel of Chippewa Falls, Wisconsin Kal Kingra of Edmonton, Alberta, Canada Crystal Haller of Kalispell, Montana Goran Vas of Croatia If you appreciate the content we put out and want to make sure it keeps on coming your way then become a Patron too! There are benefits and there is no risk. Thanks to the following bikers for supporting us via a flat donation: Douglas Emerson Tommy Glen Baker Sr. of Lindale, Texas Joe Lasater ________________________________________________________ FURTHER INFORMATION:   Official Website: http://www.LawAbidingBiker.com   Email & Voicemail: http://www.LawAbidingBiker.com/Contact   Podcast Hotline Phone: 509-731-3548 HELP SUPPORT US! JOIN THE BIKER REVOLUTION! #BikerRevolution #LawAbidingBiker

You can hear my new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM British Summer Time Friday 7 PM Eastern European Summer Time Friday 8 PM Samara Time Friday 10 PM Alma-Ata Time Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!

Photo by Brett Jordan Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:Here is Radio Kuwait circa 1970, signing on in English with their interval signal, chimes, and giving their frequency information. They were transmitting on 15345 kHz to Europe at 1600 hours UTC. This recording was made in Ancaster, Ontario, Canada using a Hallicrafters S-52 receiver and a long wire antenna. Only used an open mike next to the speaker for this.Broadcaster: Radio KuwaitStarting time: 1600Frequency: 15.345 MHzRecption location: Ancaster, Ontario, CanadaReceiver and antenna: Hallicrafters S-52 using a longwire antenna

This week's EYE ON NPI is bumpin' the tunez, it's Analog Devices (nee Maxim) MAX98365 Amplifier, a 14 V plug-and-play digital Class-D amplifier with a highly flexible digital audio interface that supports just about any kind of digital encoding. This amplifier has a wide input power range, wide logic voltage range, and can handle just about any digital audio formatting you want to throw at it: The digital audio interface is highly flexible. The devices support I2S, left-justified, and 8-channel TDM data formats. The digital audio interface accepts 8 kHz, 16 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz sample rates. Data words can be 16-bit, 24-bit, or 32-bit in I2S and left-justified modes and 16-bit or 32-bit in TDM mode. Digital audio interface input thresholds are ideal for interfacing to 1.2 V and 1.8 V logic. The devices can tolerate logic input voltages up to 5.5 V. The NPI's part number, the MAX98365 (https://www.digikey.com/short/m85rvjwh), sounds similar to an I2S amp chip we've been using for a while - the MAX98357 (https://www.digikey.com/en/products/detail/adafruit-industries-llc/3006/6058477) - and to no surprise, this chip seems to be an upgrade to the original amp. Both are single, class-D amplifiers, but the new chip has much better power supply range: 3V to 14V instead of 3 to 5V, which also allows it to max out the speaker power at around 14 W into a 4 or 8Ω load with 10% Total Harmonic Distortion (https://en.wikipedia.org/wiki/Total_harmonic_distortion). For 1% THD you can go up to 14W in 4Ω or 8W into 8Ω. The nifty thing this chip can do is swap formats based on the kind of signal it gets - which means you can use it in a range of designs. Most folks tend to use I2S, but left-justified or 8-channel TDM is also supported. It does this by auto-detecting the signal frequencies and pulse types. It also has the nicety of no MCLK pin required - which will be nice to hear for folks using this with single board Linux computer like Raspberry Pi that do not have MCLK output. Also, you get to save a pin if you are using I2S on a microcontroller! (https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp/circuitpython-wiring-test) OK, so this chip is quite magical, but there's one thing to watch for - it's only available in a chip-wafer-scale BGA package with 0.4mm pitch (https://pdfserv.maximintegrated.com/package_dwgs/21-100536.PDF). This makes it great for embedding in tiny devices, but rough for prototyping. So you may want to check out the MAX98365AEVSYS eval board (https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/MAX98365AEVSYS/16187640) which can at least get you set up before you start routing. Next up, even if you are not too scared of 0.4mm pitch, the gain select pin is in the center, which means you can at least avoid plugged vias if you're willing to live with a fixed gain. If you want a itsy-bitsy-tiny-winy amplifier with great output, wide support for different formats, and class-D efficiency, the Analog Devices MAX98365 Amplifier is a great pick! And, best of all, it's in stock right now for immediate shipment from Digi-Key. (https://www.digikey.com/short/m85rvjwh) Order today and you will be blasting the hit song of the summer by tomorrow afternoon

Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:Recorded on February 21, 1999, this is the Qatar Broadcasting Service from Doha signing on with their interval signal and announcement in Arabic. They were using 7210 kHz and a little amateur radio interference can be heard as one might expect. Receiver location was Coe Hill, Ontario, Canada.Broadcaster: Qatar Broadcasting ServiceDate of recording: 2/21/1999Starting time: 0245 UTCFrequency: 7.210 MHzReception location: Coe Hill, Ontario, CanadaReceiver and antenna: Drake SW-8 and a long wire antenna

Photo by Kevin Fuentealba Mol Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:Radio station Voz Cristiana from Santiago, Chile is heard here with a test transmission and announcement in English on April 28, 1998. My logbook says they were operating on 21550 kHz. Receiving post was in Thamesford, Ontario, Canada and I was using a Panasonic RF-3100 portable receiver hooked up to a longwire antenna.Broadcaster: Voz Cristiana, Santiago, ChileDate of recording: 4/28/1998Frequency: 21.550 MHzRX location: Thamesford, Ontario, CanadaReceiver and antenna: Panasonic RF-3100 and longwire antenna

You can hear my new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM British Summer Time Friday 7 PM Eastern European Summer Time Friday 8 PM Samara Time Friday 10 PM Alma-Ata Time Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!

You can hear my new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM British Summer Time Friday 7 PM Eastern European Summer Time Friday 8 PM Samara Time Friday 10 PM Alma-Ata Time Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!

You can hear my new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM British Summer Time Friday 7 PM Eastern European Summer Time Friday 8 PM Samara Time Friday 10 PM Alma-Ata Time Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!

You can hear this new airing on 9670 kHz (9.670 MHz) every Friday at the following times: 5 PM British Summer Time Friday 7 PM Eastern European Summer Time Friday 8 PM Samara Time Friday 10 PM Alma-Ata Time Friday Reception should be best for listeners in Europe, Russia, Central and East Asia, the signal may also be heard (with varying strength) in the Middle East, Africa, South Asia. Consider supporting my show with a donation via PayPal to vorwinfo@gmail.com it needs your help to survive!