Podcasts about p25

I love answering your scanner radio questions, and today I answer some questions that have been submitted via our ask page, email, and social media platforms, including YouTube. You can submit your questions at www.scannerschool.com/ask. What You Need To Know Rick asks, “Can I listen to cell phones? James has a question about Close Call. Jim wants to know what he should do about the extra coax in his shack. Joe is wondering about control channel encryption on P25 systems. Garret has a question about CHP and their talk group usage.   All session notes with links to the items we talked about can be found on our website at https://www.scannerschool.com/session194    

In today's podcast, I am going to talk about P25 digital technologies on the UHF T-band and how this decision has caused many problems for P25 Trunked Systems.

What are TDMA Control Channels on P25 trunk systems, and what does this mean for the scanner radio hobby?   What You Need To Know P25 TDMA control channels are different from P25 phase two voice channels. Every single P25 system out there up until this point has used an FDMA control channel. A new addition to the P25 suite of standards defines a TDMA control channel for P25 trunking operations similar to the FDMA control channel. The TDMA control channel supports the same functionality as the FDMA control channel. However, with the use of that TDMA control channel, a single 12.5 K Hz channel supports two virtual channels and can be configured to utilize one or both virtual channels for inbound outbound signaling. Before current P25 systems can migrate over to TDMA, they need to only have Phase 2 Talk Groups All session notes with links to the items we talked about can be found on our website at https://www.scannerschool.com/session191 -------------------------------------------------------------- Free SDR Course! Our new free course will introduce you to Software Defined Radios. "The Ultimate Beginner's Guide to Software Defined Radio: Everything you need to know to get started with SDR in an afternoon" is now open for enrollment.  Register now at https://courses.scannerschool.com ---------------------------------------------------------------   Would you like 1 on 1 help? If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit http://www.scannerschool.com/consulting to book your one hour appointment today! --------------------------------------------------------------Help support Scanner School You can help support Scanner School by visiting our support page at http://www.scannerschool.com/support

Free SDR Course! Our new free course will introduce you to Software Defined Radios. "The Ultimate Beginner's Guide to Software Defined Radio: Everything you need to know to get started with SDR in an afternoon" is now open for enrollment.  Register now at https://courses.scannerschool.com --------------------------------------------------------------- Is it a seller's market when it comes to used scanner radios?   Are older, "vintage" scanners prices out of control? What You Need To Know There is a shortage in the new market for P25 type scanner radios, especially SDS100 and 200, but prices are the same as for new ones in the used markets. The used market will dictate a solid price for that kind of radio because of less supply and high demand. eBay is the largest second-hand market for used scanner radios. The Facebook marketplace is another option for scanner radio purchases, but it is advised not to use the Facebook payment program as there is no protection. One can also find scanner radio-like stuff at Craigslist, and it's better to find some cash-only deals from Craigslist. Don't be fooled by a scanner listing if someone simply puts the word "vintage" in the title. If a radio has been well maintained or in collective items or still in the box with manual and never been used, those radios collect a premium. All session notes with links to the items we talked about can be found on our website at https://www.scannerschool.com/session188 -------------------------------------------------------------- Would you like 1 on 1 help? If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit http://www.scannerschool.com/consulting to book your one hour appointment today! --------------------------------------------------------------Help support Scanner School You can help support Scanner School by visiting our support page at http://www.scannerschool.com/support

Free SDR Course! Our new free course will introduce you to Software Defined Radios. "The Ultimate Beginner's Guide to Software Defined Radio: Everything you need to know to get started with SDR in an afternoon" is now open for enrollment.  Register now at https://courses.scannerschool.com --------------------------------------------------------------- In today's episode, I will discuss shortages of scanner radios, which models of scanners may be out of stock, and why this could be.     What You Need To Know Brand new P25 style scanners have become hard to find in the last year and a half. This is especially true for the SDS100 and 200, as well as the TRX-1, and TRX-2. They seem to be out of stock from everywhere in the market. A partial and obvious reason for the shortage of P25 scanners is COVID. In this Pandemic situation majority of people were staying home or working remotely. Many of them come back into scanner radio hobby after being not involved for some time. During the pandemic, numerous people were introduced to scanner radio hobby or something they want to do, and now they are just picking on that hobby. It's not only the scanner radio market with shortage issue; it's also beyond the radio and communication market. In the shipping industry, we have a shortage of dock workers due to COVID, and they are not working in total capacity, which causes ships not to load and unload fast, and ships are queued for longer than their routine trip. Containers from the ship are unloaded on trains or trucks, but as the truck drivers are sick due to COVID, the movement, loading, and unloading of containers are significantly less, causing a shortage of containers to difficulty in moving inventory. Silicone issue or the microchip problem has been a global issue, and everyone is looking for these microchips. Demand for microchips is exceptionally high due to a surge in people wanting electronics equipment as they are stuck at home. It takes almost a year to get the chip designed and ready to be manufactured from start to finish, and these are built on wafers.  Everything is based on microchips and all these come from the part of the world where there is a shortage of workers due to another wave of coronavirus. If you are in the market for new scanner radio, put your name on any email list that you find by major scanner sellers like scanner master. Because of the shortage of new scanners, the used market for some of these hard to find scanners is very strong. eBay, Facebook, and the Radio Reference Classifieds are a great place to find scanners radios on the secondary market. All session notes with links to the items we talked about can be found on our website at https://www.scannerschool.com/session187 -------------------------------------------------------------- Would you like 1 on 1 help? If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit http://www.scannerschool.com/consulting to book your one hour appointment today! --------------------------------------------------------------Help support Scanner School You can help support Scanner School by visiting our support page at http://www.scannerschool.com/support

Chris NE5V tells us more things you can do with a Clearnode. This is on how to have nodes announce callsigns instead of numbers. I did it by ssh into node first, then the last part of the podcast is changing a timed event in the Clearnode app. Get a ClearNode at ClearNode - AllStar, EchoLink, DMR, P25, YSF, FCS & NXDN - Node-Ventures visit www.blindhams.com

Here are your news on web: - Challenge accepted: Pacquiao names Duque-led DOH among most corrupt in Duterte Gov't - ‘Disheartened' DOH ready to face any probe on corruption allegations - Pasig city to sue 2 alleged vaccination fixers — Mayor Vico - Davao City to require cyclists to pay P25 registration fee - Initial clinical trial shows Coronavac vaccine safe for children, adolescents — Study - ‘Crash landing on you' star Son Ye-Jin to headline new drama ‘Thirty Nine' - Gilas coach: Dwight Ramos to miss OQT games - TECH TALK: Laser projectors for productivity and entertainment For more news and details, visit our website www.mb.com.ph and get a copy of the Manila Bulletin newspaper tomorrow. You may also subscribe to our newsletter at https://mb.com.ph/newsletter-subscrip... to have the day's latest news delivered to your inbox.

Free SDR Course! Our new free course will introduce you to Software Defined Radios. "The Ultimate Beginner's Guide to Software Defined Radio: Everything you need to know to get started with SDR in an afternoon" is now open for enrollment.  Register now at https://courses.scannerschool.com --------------------------------------------------------------- In today's episode, I will talk about budget-friendly P25 scanners. We will also cover some limitations when trying to stick within our make believe budget.   What You Need To Know When it comes to buying scanners, everybody has different budgets For this exercise, I've set a budget of $300 At this price point, we will only be able to afford a Phase 1 Scanner There are some scanners in our make believe budget that are current and can be bought new today We will be reviewing Radio Shack, GRE, Whistler, and Uniden Scanners Simulcast and updated features will not be supported in this budget Even with these limitations, we will have a nice list of great scanners that we can afford All session notes with links to the items we talked about can be found on our website at https://www.scannerschool.com/session184   -------------------------------------------------------------- Would you like 1 on 1 help? If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit http://www.scannerschool.com/consulting to book your one hour appointment today! Help support Scanner School You can help support Scanner School by visiting our support page at http://www.scannerschool.com/support

Free SDR Course! Our new free course will introduce you to Software Defined Radios. "The Ultimate Beginner's Guide to Software Defined Radio: Everything you need to know to get started with SDR in an afternoon" is now open for enrollment.  Register now at https://courses.scannerschool.com --------------------------------------------------------------- Today we break down the similarities and differences when it comes to Scanners and Receivers What You Need To Know Scanners and Receivers are more like cousins than brothers and sisters in the radio world.  Both receive and scan frequencies They don’t transmit. Receivers have a larger receive foot-print than a typical scanner.  Typically 100 KHz is the bottom of a receiver, but you can go up to a couple of gigahertz. A typical scanners start as low as 25 MHz and go up to 1300 MHz Scanners will typically not support monitoring AM Broadcast Bands, but Receivers will. Scanners do not support SWL monitoring, but Receivers will. Scanners have more modes that are not found in receivers; NXDN, DMR, P25, are common modes of reception present in a scanner. Receivers have modes that are not in present in a scanner, such as upper and lower sidebands, AM and CW Some high end receivers will do D-STAR, P-25, dPMR, and NXDN. Receivers can be very affordable starting less than $200 and going over $10,000 for a high end model. Scanners can start at $100 and cost over $600 for a high end model. With close call and signal stalking, scanners can help you find a more relative frequency faster than a receiver.  All session notes with links to the items we talked about can be found on our website at www.scannerschool.com/session174 --------------------------------------------------------------- Would you like 1 on 1 help? If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit www.scannerschool.com/consulting to book your one hour appointment today! Help support Scanner School You can help support Scanner School by visiting our support page at www.scannerschool.com/support

Jeff and Nathan are joined by special guest, Andrew Mundello to talk about Playstation State of Play, Blizzcon, and Pokemon Presents! All of this and more!

weekly speakeasy(2月15日) : Dua Lipaの新曲、Taylor SwiftがLove Storyを再レコーディング、Billie EilishがMステ登場予定、Post Maloneがポケモン25周年企画P25のオンラインライブに登場、その他Pale Wavesのニューアルバム、Claudのニューアルバムリリースなど。 #ttspeakeasy

Free SDR Training! Check out our new course, "The Ultimate Beginner's Guide to Software Defined Radios: Everything you need to know to get started with SDR in an afternoon."   You can enroll for free at https://courses.scannerschool.com --------------------------------------------------------------- Get started with Scanning in 2021 Our "2021 Scanner Radio Crash Course" Webinar will be January 26, 2021 at 8pm Eastern US time.  Register for the live webinar or catch the replay at www.scannerschool.com/2021 This webinar will get you started or up to speed on Scanning for 2021.  --------------------------------------------------------------- Do you want to get started with scanning or brush up on basics in the new year? In this episode, Phil goes through a rapid-fire rundown of Trunk Systems. This is part 2 of this 2021 crash course. What You Will Take Away from This Week's Podcast: Trunking means that multiple users share pooled frequencies, allocated on an as-needed basis. Each talk group is assigned a frequency to use, which is more efficient than conventional systems. These systems can be linked together into networks. The control channel can be considered air traffic control or the traffic cop at an intersection; when a user keys in they request a voice channel, and when it’s no longer in use, everyone moves back to the control channel. Types of trunking include EDACS, Motorola Type II, P25, DMR, LTR, NXDN, and more. Rebanding came about because NexTel purchased ESMR frequencies, which resulted in cell phone band frequencies moving up 15MHz and public safety bands moving down 15MHz. Simulcast is when you have multiple transmitter locations keying up at the same time and broadcasting the same information over the same frequencies.  All session notes with links to the items we talked about an be found on our website at www.scannerschool.com/session161 --------------------------------------------------------------- Would you like 1 on 1 help? If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit www.scannerschool.com/consulting to book your one hour appointment today! Help support Scanner School You can help support Scanner School by visiting our support page at www.scannerschool.com/support

Despite sagging ratings for many cable and broadcast networks, HGTV is thriving. A VERY BRADY RENOVATION attracted more than 28 million total viewers and averaged a 1.59 live plus three-day rating among P25-54! The series also was nominated for an Emmy! CELEBRITY IOU attracted more than 25.7 million total viewers in its first season! And RENOVATION ISLAND attracted more than 22 million total viewers during its 11-week run. How are they doing it? Well, HGTV Group Senior Vice President of Production & Development LOREN RUCH joins this episode of "No Script, No Problem" to talk about the network's ratings success, the evolution of their programming, the type of designers & contractors they look for, the keys to great home renovation shows, and what fans of HGTV can expect in the near future.

2020 Holiday Buyer's Guide Are you wondering what should be on your holiday shopping list this year? In this episode, Phil shares his 2020 holiday buyer’s guide, helping you compare radios, scanner software, and accessories. What You Need To Know This year’s buyer guide is the same as the 2019 buyer guide because no new equipment has been released. East Coast Pagers will have great Black Friday deals. Uniden SR30C: A radio at the lowest price point with minimal features. Phil recommends instead upgrading to the Uniden BC125AT. Recommended analog trunking scanner: Uniden BCT15X For digital radios, Phil compares and contrasts the Uniden BCD325P2, BCD996P2, and the UBCD325P2, which all support P25 Phase 2. If you don’t need Phase 2 P25, Phil recommends the Whistler WS1040 and the WS1065. The next step up is the Whistler TRX1 and TRX2, which come with NXDN and DMR right out of the box. The Uniden BCD436HP and BCD536HP radios are Phil’s current go-tos. Internationally, Phil recommends the UBCD3600XLT, which is the overseas version of the BCD436HP scanners. Phil’s current “holy grail” scanners are the Uniden SDS100 and SDS200, despite some of the issues they have had. The Unication G2 through G5 are pagers work well in P25 Phase 2 Simulcast environments.   We also have a top 10 accessories in the second half of this podcast All session notes with links to the items we talked about an be found on our website at www.scannerschool.com/session152 If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit www.scannerschool.com/consulting to book your one hour appointment today! You can help support Scanner School by visiting our support page at www.scannerschool.com/support Don't forget to join us for our weekly net on Zello. For info, visit https://www.scannerschool.com/zello  

It’s another Friday The 13th in 2020. Tommy sends pictures over the radio. Mike discusses the new M17 digital radio protocol project. Jeffery Kopcak, K8JTK joins in with a background look at the K8JTK Hub Digital Multimode Interlink System we use each Tuesday night for the AmateurLogic Soundcheck Net. AllStar Link, EchoLink, DMR, D-STAR, NXDN, P25, and Yaesu System Fusion are linked together for the ultimate multimode conferencing experience. 1:10:53

It’s another Friday The 13th in 2020. Tommy sends pictures over the radio. Mike discusses the new M17 digital radio protocol project. Jeffery Kopcak, K8JTK joins in with a background look at the K8JTK Hub Digital Multimode Interlink System we use each Tuesday night for the AmateurLogic Soundcheck Net. AllStar Link, EchoLink, DMR, D-STAR, NXDN, P25, and Yaesu System Fusion are linked together for the ultimate multimode conferencing experience. 1:10:53

Many of you have have been submitting their questions and today I am answering some of them. This month I answer: How can he improve my current antenna setup?  What scanner should I buy if I wanted to listen to my local area and also stream it to my phone? Is there a scanner that can do P25 phase 1 and 2, and NXDN at the same time? Would Phil recommend spending additional money to get a desktop Whistler scanner over a handheld? All session notes with links to the items we talked about an be found on our website at www.scannerschool.com/session146 If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit www.scannerschool.com/consulting to book your one hour appointment today! You can help support Scanner School by visiting our support page at www.scannerschool.com/support Don't forget to join us for our weekly net on Zello. For info, visit https://www.scannerschool.com/zello  

Many of you have have been submitting their questions and today I am answering some of them.   This month I answer: What does the setting for “Set Hold Time” on a P25 scanner mean? What do you do if every few days, you suddenly can’t pick up signal on your scanner? What is the super dumbed-down version of how to program an SDS-100 scanner? What products would I recommend for an antenna upgrade to reach an area about 20 miles away? Can you monitor P25 trunking by only scanning frequencies? All session notes with links to the items we talked about an be found on our website at www.scannerschool.com/session141 If you need help with your scanner and are looking for some one on one tutoring, I'd love to help you out.  Visit www.scannerschool.com/consulting to book your one hour appointment today! You can help support Scanner School by visiting our support page at www.scannerschool.com/support Don't forget to join us for our weekly net on Zello. For info, visit https://www.scannerschool.com/zello

Do you want to understand how trunking systems work in your Object Oriented Scanner? In this episode, Phil continues his miniseries about trunking systems. He walks through optimizing your Whistler, GRE, and Radio Shack scanners for trunking using their object-oriented scanning.   What You Need To Know Think of a site as a repeater that transmits radio and control channel traffic for its coverage area. Whistler allows you to have more control over your trunk scanning thresholds than Uniden. To optimize your sites, you need to know what talk groups are most likely to be broadcast on what sites. When you’re programming your Motorola or P25 trunk sites on a Whistler, you only have to input a list of every single control channel on every site you want to monitor, rather than having to break it out by site like on Uniden. Whistler has multi-site settings including Off, Roam, and Stationary. Off means, the scanner will find the first usable control channel and use it to track the systems without bothering to scan the others. Roam is used if you’re driving or otherwise moving around and will lock onto the best site it can find based on your Threshold High and Threshold Low settings. Stationary allows you to scan through all decent quality control channels while you remain in one place. Butel software makes duplicating these scan lists much easier than using the keypad. All session notes with links to the items we talked about an be found on our website at www.scannerschool.com/session132 You can help support Scanner School by visiting our support page at www.scannerschool.com/support Don't forget to join us for our weekly net on Zello. For info, visit https://www.scannerschool.com/zello

In this episode of the Hack the Planet Podcast: We are joined in the studio by Vyrus and privacy researcher Will Scott to talk about the dual-edged sword of technology in the context of protests. We dive deep on technical innovations from the Black Lives Matter protests, especially in the areas of software defined radio … Continue reading "Protesters and Technology feat. Will Scott and Vyrus"

Do you want to understand how trunking systems work? In this episode, Phil explains how trunking system networks, sites, channels, and layers all work together and gives some examples both from his local area and more hypothetical use cases.   What You Need To Know This episode ties into last week’s episode about programming groups. A Motorola type 2 trunking system is capable of having 28 channels per site. A Smart Zone system is a collection of Smart Net systems Smart Zone networks have dynamic site assignments, meaning that if a radio or talk group is not affiliated with a site, then it does not need to be broadcast on that site. Although he uses a Motorola system as an example, these explanations also apply to DMR and P25 radio systems. In Phil’s county, they have simulcast sites on different frequency bands. These sites on this system may or may not broadcast the same talk groups. Trunking systems have multiple sites in order to efficiently use the resources available, freeing up channels for local users. All session notes with links to the items we talked about an be found on our website at www.scannerschool.com/session130 You can help support Scanner School by visiting our support page at www.scannerschool.com/support Don't forget to join us for our weekly net on Zello. For info, visit https://www.scannerschool.com/zello

In this podcast, I talk with our guest Nathan McMullin, who is the first repeat guest on the podcast and is an aviation major at Eastern Kentucky University.  He shares today about combating the issues of simulcast, but in his own way. If you remember from Nathan’s first interview (link in the notes below) we talked about how to scan on a budget.  This includes monitoring a P25 simulcast system. Nathan is here to talk about how he is building upon that setup to be able to do more with it, and what he is doing to try to monitor a simulcast system with a Whistler 1040.   What You Need To Know   Updates on Nathan now and his current equipment setup. Using Zello as a streaming tool. What content is being streamed? Time needed for setup for streaming. Using Zello as a scanning tool. Utilizing the Whistler WS1040 on the simulcast system. Keys to working through the simulcast headaches. Common issues with decoding. Why laying the radio on the side helps. More suggestions for combating simulcast issues. Addressing issues from being between 2 sites. Isolating talk groups with OpenMHz.

Imagine being able to do DMR, DSTAR, FUSION, P25 and NXDN without a radio or a hotspot from anywhere in the world for a couple hundred bucks investment. Well, now you can! With the DVSwitch Server in your home. You'll need a Raspberry Pi, DV3000 or ThumbDV, and android device such as a phone, tablet, network radio or Android TV Box and a little bit of time and willingness to learn some Linux commands. Then you will have the amateur radio digital communications world at your fingertips. Learn more about the DVSwitch suite of software by the Zingmans - Steve, N4IRS and Michael, N4IRR, at http://dvswitch.group.io. Register an account with groups.io and join in the conversation. RADIO ON THE ROCKS CafeCast is a production the DigiCommCafe Communications Network with your host, Dennyj, KD5DLJ in the Ozarks of northwest Arkansas. Check out our full Ham Buffet Menu at http://digicommcafe.com. Drop-in on my LIVE Podcast each morning at 7:00am Central in the DigiCommCafe Chat Group on Telegram in the Voice Chat! Join our DigiCommCafe Community on the Mighty Networks platform, our Facebook alternative. If you're interested in becoming a licensed amateur radio operator, I recommend you use HamtestOnline for your studies and preparations. I used it to get my Extra Class Upgrade. Do you live in a rural location like me? I'll bet you struggle to get reliable internet, don't you? I have finally found an inexpensive service. It's called Visible which is owned by Verizon and uses their network. They only have one plan and it is unlimited everything for $40 a month! If you join the Digicommcafe Party Party Group that drops to $25/month! Request a line at https://visible.com and use my referral code: 3n37nt. Once you have your SIM card installed and registered, go to https://visible.com/p/DigiCommCafe and join our party to drop to $25 a month for unlimited everything! We are very happy with the service. --- Send in a voice message: https://anchor.fm/digicommcafe/message Support this podcast: https://anchor.fm/digicommcafe/support

  What can receive DMR, NXDN, P25, and other digital modes...and is free?   It's DSDPlus! Today we talk about what DSDPlus is, how to use it, and what the differences are between the free and paid versions of this versatile software.  We shared a few links in today’s interview, and I’ve placed those links in the show notes at www.scannerschool.com/session71   If you are looking to get started with SDR, I invite you to check our our new training course.   www.scannerschool.com/courses    A big THANK YOU to our continued Patreon Supporters.  You can support us on Patreon by clicking here. Please support the Scanner School podcast.  Visit www.scannerschool.com/support to see how you can help us.  Some of the ways you can support us won't cost you any additional money!  

Jonathan Naylor, G4KLX, pioneered the opening, to amateur radio operators, of D-Star and later other digital repeater modes including DMR and Yaesu system fusion by writing software that could be implemented on Arduino and Raspberry Pi hardware for the creation of multi-mode repeater and hot-spot controllers.  G4KLX shares his ham radio story with Eric, 4Z1UG, in this QSO Today.

In Today's podcast, we review the current Phase 2 capable scanners on the market In Session 14 we introduced you P25 systems and hardware. In Session 15 we discussed Phase 1, Phase 2, X2-TDMA, and conventional P25 as well as some hints and tricks you can use to monitor P25 systems. This podcast will wrap up our P25 series, for now. You can grab links and see more reviews on the scanners mentioned on today's podcast at www.scannerschool.com/session16   New this week, you can also help support the Scanner School podcast by visiting www.scannerschool.com/support   We have several ways to help fund the podcast, including a way that comes at no cost to you! Don't forget to catch us this Saturday for our FB Live Q&A Session.  See our schedule at www.scannerschool.com/events  

Last week we introduced P25.   This week we build on that introduction session and discuss conventional and trunking with P25.  This includes Phase 1, Phase 2, and X2-TDMA systems. We also have a few hints and tricks for you to optimize your P25 reception on your Uniden, Whistler, GRE, or Radio Shack scanner radio. You can grab the show notes for today's podcast at www.scannerschool.com/session15 You can also take a look at our glossary for all of the acronyms we used in this session at www.scannerschool.com/glossary      We also have a live Facebook Q&A Session every Saturday at 11am.  Join us at www.scannerschool.com/facebook   73 Phil / w2lie

Welcome to P25 aka Project 25 aka APCO-25. We talk about the 8 modules that make up a P25 system and how they operate. P25 Conventional is covered as well as NAC. P25 Trunking, Phase 1, Phase 2, and X2-TDMA will follow in next week's session of the Scanner School Podcast. If you haven't subscribed to our podcast, please do so now so you don't miss next week's session.

Be a fly on the wall on one of my consulting sessions with Jon Goldenberg.   Jon was one of the winners of the Free Consulting Contest that we had in February of 2018. Jon and I discuss his current scanner needs and discuss some ways on how he can setup his scanners. We talk about the local P25 and EDACS Trunk systems, close call, P25 threshold settings, and if he should consider using multiple scanners for his monitoring needs. There is also an idea I have been tossing around at the end of this session, so please be sure to list to the full podcast to know what I have planned at the end of this week.  

In this session of Scanner School, we review scanners that support "Analog" trunk systems, or systems that are not completely digital like P25, DMR, or NXDN.   These scanners are sometimes called Trunk Tracker III scanners and the scanners we review in this session all support rebanding. You can download session notes for this podcast, as well as additional resources at http://www.scannerschool.com/session12 We also have a new e-guide available for anyone looking for their first scanner.  Download a copy of the "5 Things You Need to Know Before Buying Your First Scanner" at http://www.scannerschool.com/newscanner

P25 by Ilyaspeaker

From the Green Country Hamfest in 2017, Mike, KC5DBH, presents a forum that compares the different Digital Voice Modes for VHF/UHF in Amateur Radio Todayhttp://livefromthehamshack.tv

From the Green Country Hamfest in 2017, Mike, KC5DBH, presents a forum that compares the different Digital Voice Modes for VHF/UHF in Amateur Radio Todayhttp://livefromthehamshack.tv

P5. Mrs. Brice had twenty-five mice. 布莱斯太太有25只老鼠。 P6. She fed her mice the finest cheese. 她用最好的奶酪来喂养她的老鼠。 P7. She washed and dried them behind their ears, so they were always clean. 她经常给老鼠们洗澡并把他们的耳后擦干，所以老鼠们总是非常干净。 P8. Mrs. Brice loved to sing for them. When she played the piano, twenty-four little mice danced around her. 布莱斯太太很喜欢为老鼠们唱歌。 当她弹钢琴的时候，24只小老鼠围着她跳舞。 P9. One very small mouse danced on top of her hand. He was afraid to fall between the keys. 一只非常小的老鼠在她手背上跳舞，却又害怕掉进琴键间。 P10. When Mrs. Brice went to bed, twelve little mice slept on one side of her. Twelve little mice slept on the other side. One very small mouse slept on the clock, in case he wanted to know what time it was. 当布莱斯太太躺床上睡觉时， 0 00 12只小老鼠睡在她一侧，12只小老鼠睡在她另一侧， 非常小的那只小老鼠睡在时钟上，免得他不晓得时间。 P11.In the morning, Mrs. Brice did exercises. She stretched her arms and legs. She bent over and touched her toes with her fingers. 清晨，布莱斯太太做运动。 她伸展胳膊和腿，她弯腰，用手指触碰足尖。 P12.“One, two, three, four, five, six.... One, two, three, four, five, six ....” “1,2,3,4,5,6......1,2,3,4,5,6......” P13.Twenty-four little mice did exercises too. 24只小老鼠也跟着做运动。 P14. They streched, they bent, 他们做伸展运动，他们弯腰 P15. they touched their toes. One very small mouse kept on sleeping. 碰碰自己的足尖。 非常小的那只小老鼠还在睡觉。 P16. “It it time for our walk,” said Mrs. Brice. Twelve little mice walked in front of her. Twelve little mice walked in back. One very little small mouse sat on top of Mrs. Brice hat, so he could see where they were going. P17. He saw a cat. P18. Twelve little mice ran this way. Twelve little mice ran that way. P19. One very small mouse jumped down to the ground and ran this way and that. P20. He ran so many different ways, the cat got tired of chasing him and went back. to whatever he had been doing. P21. “What a clever little mouse you are,” said Mrs. Brice. “Now we can go to buy some food.” P22. Twenty-four little mice sat in a cart and enjoyed the ride. One very small mouse sat in front. P23. They went up one aisle. P24. They went down another. P25. Mrs. Brice bought food in cans, food in jars, cold food, hot food. P26. “Now we can go home,” said Mrs. Brice. Twenty-four little mice were glad. But one very small mouse kept on leading the way. He led them to the dairy counter. P28. Mrs. Brice bought a nice, big cheese. P29. Then she and her mice went home to eat it. P30. After they ate, Mrs. Brice sang and played the piano. P31. Twenty-four mice danced around her. P32. One very small mouse kept right on eating.

In der Folge 86 geht es wieder um Amateurfunk, diesmal allerdings mehr um die digitalen Betriebsarten. Zu Gast ist diesmal Franz Koch, seines Zeichens langjähriger Funkamateur. Von SITOR gehts über AMTOR, AX.25 und D-Star bis PMR. Alles was digital ist und funkt, hört ihr hier. Trackliste Funkadello – Patrulla Lunar Gungung – Last Ninja 2 Central Park Sonic Wanderer – Antics (Back from the dead) Dr. Blitzen – Exploding Fist Die Links zu dieser Folge verzögern sich aus gesundheitlichen Gründen etwas und werden noch nachgereicht. Mehr dazu in der nächsten Sendung! Swiss ARTG :: Swiss Amateur Radio Teleprinter Group D-Star Info :: D-Star Info Digital Modes :: Digitale Betriebsarten von WB8NUT Digital Modes :: Digitale Betriebsarten KA9Q :: Wikipedia über KA9Q AX25 Soundmodem :: Soundkarte als AX25 Modem ICOM :: ICOM Europe AMR Codec :: Adaptive Multi-Rate Codec AMR Codec :: Wikipedia über den AMR Codec APCO Project 25 :: APCO Project 25 DMR Association :: DMR Association SwissDMR :: Schweizer DMR Netzwerk HB9DC :: Digital Radio Club Zürich AEA PK-232 Multimodem :: AEA PK-232 Multimodem HAMNet Vortrag :: Vortrag über HAMNet am Linux Infotag 2014 Auxburg HAMNet DB :: HAMNet Routing Datenbank Motorola SL300 :: Motorola SL300 Handfunkgerät Motorola SL300 :: Motorola SL300 Handfunkgerät WEFAX Wetterfax :: Wetterfax mit Radio empfangen Wetterfax :: Wetterfax auf Kurzwelle Wetterfax empfangen :: Wetterfax auf Kurzwelle empfangen JvFax & JVComm32 :: Wetterfaxe empfangen mit JvFax und JVComm32 ESYS :: Europäisches Seewetter Informationssystem File Download (167:14 min / 166 MB)

What use is an F-call? Digital Voice in Amateur Radio is broken. It's a big call for a mere F-call to make, so let me back that up with some facts. There are three basic digital voice products you can buy as an amateur today, D-Star made by ICOM, System Fusion made by Yaesu and MOTOTRBO or TRBO by Motorola. There is also Project 25, or P25. Each of these systems are based around technologies and patents owned by a company called Digital Voice Systems Inc. or DVSI. In essence, each of these systems use the same maths to encode and decode an audio signal. This process of encoding and decoding is embodied in a thing called a Coder / Decoder or CODEC. While each of these use the same maths, owned by the same company, they don't actually inter-operate. What that means that if you want to use a D-Star repeater, you need a D-Star radio, and if you want to use a System Fusion repeater, you need a System Fusion radio, even though both radios use the same maths to make your voice into a digital signal. It gets worse. If Elecraft wants to build a radio that talks to three systems for example, they would need to license the same technology three times, at exhorbitant cost. Most of these are actually achieved by buying a chip from DVSI, not to make it faster, but to protect their maths against people reverse engineering it. It also means that if you want to experiment with Software Defined Radio, you cannot use it to decode D-Star, System Fusion or TRBO, because the costs to license the technoogy is not viable for anyone other than commercial users. In January 2014 I was lucky enough to attend the Linux Conference Australia which at the time was being held in Perth, 15 km from my QTH. Being a comper nerd and becoming a radio nerd meant that this was an opportunity too good to miss. You may have heard some of the 50 interviews I did at that conference. One of the reasons I did those interviews is to begin the process of making my fellow amateurs aware of other ways of doing business. Open Source and Software Freedom are important concepts that relate directly to Amateur Radio. People like David Rowe VK5DGR and Bruce Perens K6BP are at the forefront of developing and advocating alternatives, like Codec2, a piece of software written by David to address this specific problem. Amateur Radio is an experimental hobby. What we do is play with stuff, break it, put it together in new and innovative ways, research and develop. None of those things are possible with Closed Source encombered products like the stuff that ICOM, Yaesu and Motorola are flogging. Yes it's great, it's digital, it improves many things like battery life, bandwidth use and channel separation, but it's also broken. There are 4 and a half D-Star users in VK6, 2 System Fusion users and I'm not aware of any TRBO users. Those numbers are in jest, but this is not widely used technology, despite the fact that digital voice adds many benefits to Amateur Radio. On the other side of the fence, every Amateur Radio has AM, FM, SSB and CW, precisely because there are no such restrictions. Next time you buy a shiny new radio, or advocate a new technology, or invite a trojan horse like a free repeater, it would pay to notice the other issues that the sales people gloss over. I'm Onno VK6FLAB