Podcasts about wwvb

Tick tock, it's time for this week's EYE ON NPI - this week we're on time and on budget with the EPSON RX4901CE and RX8901CE Real-Time Clocks. (https://www.digikey.com/en/product-highlight/e/epson/rx4901ce-and-rx8901ce-real-time-clocks). These are two affordable yet ultra-high high precision temperature compensated Real Time Clocks - from EPSON who are well known for their quality crystal offerings (https://www.digikey.com/short/b0t2j2c5). Accurate time-keeping is something folks ask us about a lot - it's a lot harder than most people think! (It's sorta up there with voice recognition and 3D-indoor-spacial-tracking with "things that seem really common but actually are super tough) Most folks are used to alarm clocks that use the power line 60Hz sine wave to keep track of seconds, we've done that for plug-in clocks for almost a century (https://en.wikipedia.org/wiki/Electric_clock) And while the utility's mains frequency does fluctuate with load, its compensated overnight so average out to a near-perfect 60Hz (http://leapsecond.com/pages/mains/). If you don't have access to that 60Hz calibrated signal, say because you're battery powered, or using a switching supply, you have a few options for externally-validated time keeping. Some folks like the WWVB radio-signal (https://en.wikipedia.org/wiki/WWVB) synchronization modules (https://www.sparkfun.com/products/retired/10060) that receive an atomic-clock-accurate signal from Colorado. Others like to use a GPS module, which will get atomic-clock-accurate signals from spaaaaaaaaaace (https://www.adafruit.com/product/4279), finally of course, if you have Internet connectivity you can get time from NTP (https://www.ntppool.org/en/). All of these require a lot of power, and for GPS you need to have an outside antenna - or at least close to a window. WWVB works best in the middle of the country, but we've always had a little difficulty in a NYC apartment. If you want low-power or battery-powered time stamping and logging, a real time clock is the way to go. But these chips aren't sync'd to some global standard and they tend to have a lot of drift (https://en.wikipedia.org/wiki/Clock_drift) - seconds a day, which adds up! This is due to the timing crystal having some variation, usually 10 to 20 ppm. 20 parts-per-million is the same as 20 / 1,000,000 * (24 * 60 * 60 seconds/day) = 1.7 s/day variability, or about a minute a month. So it really can add up! The RTC counter circuitry itself is perfectly accurate, so if we could make sure the crystal was perfect, we'd have no timing issues. To do that, we have to account for the temperature...thus bringing forth the invention of the TCXO Temperature Compensated Xtal Oscillator (https://www5.epsondevice.com/en/products/tcxo/) something that Epson is really good at making! So it's no surprise that they've packaged an RTC chip into one of their crystal-sized enclosures to create a sealed high precision RTC. And the price is really good too! We often see TCXO RTC's for $6-$8, whereas the Epson RX8901CE are $3.25 in quantity and they're also nice and compact, 3x2x2.5mm in size. (https://www.digikey.com/short/mw38mqrz) Both the Epson RX8901CE I2C version (https://www.digikey.com/short/z4rhvbw0) and the RX8901CE SPI version (https://www.digikey.com/short/hmwj9djc) are in stock right now for immediate shipment from Digi-Key! Order today and you'll get it by tomorrow afternoon - so you can stick to your production schedule with a tip-top RTC that won't waste your time.

Router port configuration (using UPnP for Tablo remote), quantum computing and qubits (what does it mean), resetting atomic clocks using WWVB (tips and tricks), dark web scans (use HaveIBeenPwned, its free), Profiles in IT (Alex Hills, WiFi pioneer), novel app that tilted the election (Reach brought in new voters), Google to digitize 5M photos for NYT, App of the Week (Apple VoiceOver, accessibility for the blind). This show originally aired on Saturday, November 10, 2018, at 9:00 AM EST on WFED (1500 AM).

Router port configuration (using UPnP for Tablo remote), quantum computing and qubits (what does it mean), resetting atomic clocks using WWVB (tips and tricks), dark web scans (use HaveIBeenPwned, its free), Profiles in IT (Alex Hills, WiFi pioneer), novel app that tilted the election (Reach brought in new voters), Google to digitize 5M photos for NYT, App of the Week (Apple VoiceOver, accessibility for the blind). This show originally aired on Saturday, November 10, 2018, at 9:00 AM EST on WFED (1500 AM).

Time is running out..... The 2019 annual budget for NIST (National Institute of Standards and Technology) decreased by $49 Million USD from the 2018 budget. Due to the decrease in budget, the NIST has decided to pull funding for WWV, WWVB, and WWVH.   This move will save NIST $6.3 Million USD.   WWV is one of the oldest radio stations in continuous use.  They went on the air in 1920 from Washington DC, broadcasting the time 24 hours a day, 7 days a week. WWV, WWVH, and WWVB Broadcast the official US Time Broadcast Atlantic and Pacific Maritime Conditions Broadcast GPS Status Updates Broadcast geophysical alerts from NOAA WWV, WWVH, and WWVB Are used by many radio operators to check band conditions Used by many to calibrate their receivers to make sure they are on frequency Used by mariners for storm updates Used by anyone who has a device that sets the time automatically from the "atomic clock" Listening to WWV, WWVH, and WWVB: Operate on 2.5, 5, 10, 15, and 20 MHz Transmit 10kW on 5, 10, 15 MHz Transmit 2.5kW on 2.5 and 20 MHz WWV and WWVB operate from Ft Collins, CO WWVH operates from Kauai, Hawaii You may also dial in over the phone WWV receives 1M Calls per year WWVH receives 50k calls per year  How can we save WWV, WWVH, and WWVB Sign this petition online (www.scannerschool.com/savewwv) 100,000 electronic signatures are need As of this podcast date, only 16k are signed We need 83k more for the White House to respond Call your state congressperson Call your local government Call your state's governor's office   All session notes and additional links can be found on our website at www.scannerschool.com/session38   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!  

George demonstrates Windows 10 on the Raspberry Pi. Tommy talks about DHAP RF Commander. Peter builds the Pixie kit and has a few highlights from the DATV QSO Party. Plus the ‘Cheap Old Man’ is back! Emile gives us a shack update and shows how to time sync your computer over the air with WWVB. 1:12:30

George demonstrates Windows 10 on the Raspberry Pi. Tommy talks about DHAP RF Commander. Peter builds the Pixie kit and has a few highlights from the DATV QSO Party. Plus the 'Cheap Old Man' is back! Emile gives us a shack update and shows how to time sync your computer over the air with WWVB. 1:12:30

Connecting extra laptop monitors, sending text messages using email gateway, digital photography (RAW vs JPG images, size, features), learning Linux, atomic clocks (time standards, WWVB sync broadcast from Fort Collins), computer time (synced using Internet time servers), Profiles in IT (Eben Christopher Upton, creator of Raspberry Pi computer), Device of the Week (Raspberry Pi, $35 hacking computer), JustDelete.me (delete your online presence with ease), Microsoft CEO to retire (August 2014, stock soars), and teaching to all learning styles is key to student success. This show originally aired on Saturday, August 24, 2013, at 9:00 AM EST on WFED (1500 AM).

Connecting extra laptop monitors, sending text messages using email gateway, digital photography (RAW vs JPG images, size, features), learning Linux, atomic clocks (time standards, WWVB sync broadcast from Fort Collins), computer time (synced using Internet time servers), Profiles in IT (Eben Christopher Upton, creator of Raspberry Pi computer), Device of the Week (Raspberry Pi, $35 hacking computer), JustDelete.me (delete your online presence with ease), Microsoft CEO to retire (August 2014, stock soars), and teaching to all learning styles is key to student success. This show originally aired on Saturday, August 24, 2013, at 9:00 AM EST on WFED (1500 AM).

WWVB Ft. Collins (© 2013 Jim Pullen)The World Listening Project celebrated its 40 anniversary on Thursday, July 18th. On Thursday, How On Earth's Jim Pullen was in Ft. Collins recording audio for an upcoming story on the National Institute of Standards and Technology radio station WWVB. To celebrate the World Listening Project, World Listening Day, and the field of acoustic ecology, he took a few minutes to record a thunderstorm that was causing some havoc at the station. Take some time to listen quietly to the sounds in your life! (Recorded using linear pulse-code modulation at a sample rate of 96 kHz and resolution of 24 bits per sample with a Marantz PMD 661 recorder specially fitted with low-noise preamplifiers by Oade Brothers and an Audio-Technica BP4025 x/y stereo field recording microphone. The audio file posted here is a 192 kbps mp3.) Producer: Jim Pullen Listen to the storm:

Following a long delay, I have produced a new episode. This time I'm talking about Apple's iPad. Like most computers, it doesn't keep time very well on its own. However, believe it or not, you can have atomic timekeeping on an iPad! You just have to know what apps to use. And that's what I want to tell you about.(Click on any image for a larger version.)First and foremost, if you have an iPhone, an iPod Touch or an iPad, you must get this free clock app from Emerald Time...Apple's iTunes Store link to view and/or download this free appCheck out their web site for this explanation of their free Emerald Time App.NEXT,If you want to spend a mere 99 cents and get a really pretty Observatory App, also from Emerald Time, well, check this out...Apple's iTunes Store link to view and/or download Emerald ObservatoryAgain, check out their official web site for more information about this app. (Please note that the Emerald Observatory is only available for the iPad.)But wait! There's more. For another mere 99 cents you can enjoy the wonderful World Clock Pro HD. Check out these screen shots...Here is the link to the Apple iTunes App Store listing of this beautiful app.One of the great things about this app is that it will work with the iPhone, iPod Touch and the iPad. So reach deep into your piggy bank and let that 99 cents do something beautiful to your portable device.And then there are some other, free apps to consider. For example, Here's the free version of a sunrise/sunset database. It can automatically detect where you are and then tell you the sunrise and sunset times for that location.And here are the links to some other FREE apps that I mentioned in this episode... The Wink Alarm Clock for iPadThe Dali Clock for iPad, iPhone and iPod TouchText Time for iPad, iPhone and iPod Touch But... enough with the blog text. Be sure to download Episode 25 of my podcast right here... Episode 25 of The Atomic Timekeeping PodcastSubscribe to the Podcast in iTunes

I'm back! This time I'll talk a little about the newest offerings I've seen at Wal-Mart but then I'll also tell you about the HD radio receiver I recently installed in my car. This thing can set itself to the "correct" time provided by broadcasters... or can it? Learn more by listening.By the way, did you know that James Cameron has given us a new, out-of-this-world way to keep time? Read all about it here...http://www.leapsecond.com/unclock.htmDownload my podcast episode here...AtomicPodcast24.mp3Subscribe to the Podcast in iTunes

It's a special, video edition of the Atomic Timekeeping Podcast and, this time, I'm going to show you how to use an "Atomix" clock.Download the episode at the link below:AtomixDemo.m4v...or enjoy the YouTube version...Subscribe to the Podcast in iTunes

You can find "Atomix" radio controlled clock movements from Klockit at this place...http://www.klockit.com/products/dept-77__sku-AAAAH.html...and if you want to see the movement which uses three AA batteries instead of just one, check it out here...http://www.klockit.com/products/dept-77__sku-Atomic_Clock_Movement_Battery_Pack.htmlAnd now, a quick illustration to show how batteries can be arranged in "parallel" or in "series."When batteries are wired in "parallel," as in the example above, the voltage remains the same but each individual battery is drained less than if you only used one.When batteries are wired in "series," as in the example above, the voltage of each battery adds to the entire voltage of the circuit. So three batteries together will produce three times the voltage.Anyhow, download episode 22 of this podcast right here...AtomicPodcast22.mp3(Running Time 27:59)Subscribe to the Podcast in iTunes

Sorry about missing my last couple of deadlines, but here's a new episode...Download this podcast here...AtomicPodcast21.mp3(Running Time 31:33)Subscribe to the Podcast in iTunes

In this episode, I talk about the amazing gadget which was mysteriously preventing my radio controlled clocks from receiving WWVB. Hmmmm.http://www.amazon.com/Eco-i-Lite-Power-failure-Handheld-Nightlight/dp/B001TA52CG/Download this episode here...Atomicpodcast20.mp3(Running time 21:30)Subscribe to the Podcast in iTunes

First of all, I spent a little time in this podcast talking about my new, electric lawn mower. It's this Craftsman electric mower. Then I spent the bulk of this podcast episode talking about radio controlled wrist watches. Check out some links to..Casio WatchesArcron WatchesOceanus WatchesJunghans Watches...and more watchesAnd here are three radio controlled wrist watches from my personal collection. First, the Arcron-Zeit Digital Sports Watch......and the next watch is my first Casio Waveceptor Watch.And the next one is my "Tough Solar" Waveceptor watch, which I've actually had since 2006.So, have some fun with radio controlled watches!Download Episode 19 here...AtomicPodcast19.mp3(Running time 46:42)Subscribe to the Podcast in iTunes

A few things this time around: First, if you're interested in radio controlled clock products from Skyscan, Here's a link to their company web site...http://skyscan.info/content/index.phpThat link will also contain links to contact information and product manuals for both current and discontinued products.Meanwhile here's a nice place to look up sunrise and sunset times for your favorite U.S. cities.http://www.sunrisesunset.com/custom_srss_calendar.aspAnd here's a math quiz for you. If I say, "This hamburger costs five times more than a sandwich," how do you express that as a mathematical equation?Let's see... if the sandwich is $1 then let's say that "n=1." Now, "five times more" would be something like this: "n + 5n," right? So then "five times more" is the same as "six times the original number."n+5n=6n. So if the sandwich is $1 then the hamuger is $6. Not five but SIX!Now, if I say that a used computer costs three times less than a new computer, how do you express that as a mathematical equation?. I'm not even going to try.So, download my podcast episode here...AtomicPodcast18.mp3(Running Time 30:29)Subscribe to the Podcast in iTunes

In this episode, I refer to a listener's email regarding public tours of the U.S. Naval Observatory's facility in Washington, DC. If you'd like to request a spot in an upcoming tour, here's a link with more information.http://www.usno.navy.mil/USNO/tours-events/tour-information/tour-information-for-usno-washington-dcAlso, I have a follow-up to the last episode with my post-NAB report on just a couple of things I saw in Las Vegas. Here's some information on NHK's Super Hi-Vision...http://www.nhk.or.jp/digital/en/superhivision/index.html...and there's even a Wikipedia article about this stuff...http://en.wikipedia.org/wiki/Super_Hi-VisionDownload the newest episode of my podcast here...AtomicPodcast17.mp3(Running Time 33:20)Subscribe to the Podcast in iTunes

In this episode, I'll talk a little about the upcoming National Association of Broadcasters (NAB) Show in Las Vegas. And, by the time I make the next episode, I will have gone to this convention and I can give you a post-convention report.Meanwhile, I'll show you a picture of something I saw last year at this event.So, download my newest episode right here...AtomicPodcast16.mp3(Running Time 36:06)Subscribe to the Podcast in iTunes

This time, it's a special video podcast. And I wanted to tell you about a style of clock which I've enjoyed for the past 30 years... the Ball Clock!Download my video podcast episode here...PodcastEpisode15...or watch the YouTube version right here on this browser.Just a little note... I was going to ramble on for a couple more minutes in my narration of this video. But then I realized that there's a 10-minute limit for YouTube videos and I wanted to make this a YouTube-friendly production. So I cut out a few superfluous details. For example, when I was a teenager I actually conditioned myself to sleep through the night with one of these noisy ball clocks running all night long in my bedroom. I wonder if I could do that again now. Hmmm.Subscribe to the Podcast in iTunes

This time, I'll talk about how difficult it is to set your own, personal, real atomic clock to "the correct time." Taking "lag time" into account, this could be a real problem. For most of us, a "radio controlled" clock is good enough but for some people, nothing is sufficient short of owning a real atomic clock. Some of these people call themselves "Time Nuts," and here are some links that will lead you to them...http://www.leapsecond.com/A link to the Time-Nuts mailing list sign-up pageSomeone's idea of a "real" atomic clock wristwatchHow to turn a family campout into a practical demonstration of Einstein's general theory of relativity.Meanwhile, feel free to download my newest podcast episode right here...AtomicPodcast14.mp3(Running time 29:17)Subscribe to the Podcast in iTunes

Believe it or not, it's almost time to go back to Daylight Saving Time here in the United States. (I'm getting tired of Daylight Saving Time.) Apart from my annual whining about the month of February in general (which just isn't my favorite month), I do have a few useful things to share in this podcast episode. And, for those of you who are interested, please watch three, one-hour shows about the scientific concepts of "time" on "The Science Channel" on the evening of Sunday, March 1, 2009. Check your local listings for Earth Time, Cosmic Time and a program called What Time Is It?.Also in this podcast episode, I wonder why an AM/FM "Clock Radio" alarm clock with atomic timekeeping is either rare, expensive or unreliable. But here are a few links you can try...http://www.ccrane.com/radios/am-fm-radios/sangean-rcr-3-digital-atomic-clock-radio.aspxhttp://wize.com/clock-radios/t45312-atomichttp://www.radiocontrolledclock.com/stsmmuclwiam.htmlhttp://www.radiocontrolledclock.com/saatra.htmlDownload my podcast episode here...AtomicPodcast13.mp3(Running Time 34:37)Subscribe to the Podcast in iTunes

Warning! This episode contains audio test tones. I'll explain why I'm playing the test tones but, in the meantime, make sure you're not listening to this episode at high volume settings. If it's too loud, those test tones might be a little bit too surprising to your ears.So, yes, I'm talking about audio in this episode and how it relates to "Time Frequency." Time Frequency is one of the four major things that are measured by those top-level scientists at the National Institute of Standards and Technology. (It'll make more sense if you just listen to the episode.)Also in this episode, I share a very nice email from Alan in the UK. Here's a link to his blog.http://www.masterclock.co.uk/So, that's all for now. Enjoy the podcast!Download Episode 12 here...AtomicPodcast12.mp3(Running Time 27:25)Subscribe to the Podcast in iTunes

In this episode, I talk about my experiences with digitial "Weather Station" products.Download the episode here...AtomicPodcast11.mp3(Running Time 32:36)If you're interested in purchasing some kind of electronic weather station of your own, here are some links to check out. You can get them from Oregon Scientific...Check this Oregon Scientific Link.... or LaCrosse TechnologyCheck this LaCrosse Technology Link.And you can get these products from Amazon and other retailers. Take a look at some of these linksSomething from AmazonSomething from AmbientWeather.comSomething from WeatherShack.comSomething from Klockit's eWeather-Station.comSubscribe to the Podcast in iTunes

On a personal level, it has been a very busy couple of weeks. So I'm posting just a brief podcast this time around. It's a quick follow-up to the last episode. Now that we've all experienced a Leap Second together, I'll add just a few more thoughts about it. Also, I'll play the audio of what happened on WWV when the Leap Second was added at the end of 2008.Download the episode here...AtomicPodcast10.mp3(Running time 11:29)Subscribe to the Podcast in iTunes

It's time to talk about the Leap Second. Yes, there's a Leap Second in just a few hours from now (as I post this podcast). What's a Leap Second? Why do we have them? Do we really need them?Download Episode 09 right here...AtomicPodcast09.mp3(Running time 21:15 with STEREO sound!)Also, check out these links for a more nitty-gritty discussion of these issues.Markus Kuhn's essay on the Leap SecondThe NIST entry on Leap Years and Leap SecondsAnother summary of these issues from TimeandDate.comThe home page of the International Earth Rotation and Reference Systems Service... the folks in charge of determining when Leap Seconds happen.Subscribe to the Podcast in iTunes

Here's a second "bonus video" podcast for December 2008. This time you'll see three almost-identical Oregon Scientific "atomic" projection alarm clocks setting themselves to the correct time automatically. Can three clocks be perfectly synchronized? You be the judge.Download the video here...OregonProjectors.m4v...or enjoy the widescreen YouTube version.Subscribe to the Podcast in iTunes

Download this new video here...MegaClocks.m4vIt's a concise demonstration of how two Junghans Mega Clocks set themselves to the right time using WWVB. Here's the YouTube version...Subscribe to the Podcast in iTunes

Download episode 8 right here.AtomicPodcast08.mp3(Running time 25:47, monophonic)In this episode, I'll tell you about the Geochron and its official, digital version, the World Watch software for Windows systems. There are other versions of this, including something you can briefly view at www.time.gov. But I have the most experience with World Watch, so I spend a lot of time talking about this.Also, I mention a little something about astronomy again. It's a term you may have heard and it's "Analemma." Here's a web site devoted to this astronomical phenomenon... http://www.analemma.com/Pages/framesPage.htmlSo sit back and enjoy a little "talking shop" when it comes to really nifty timepieces.Subscribe to the Podcast in iTunes

Download the new episode here...AtomicPodcast07.mp3(Running Time 35:13, Monophonic)In this episode, I mentioned BRG Precision in Kansas. Here's their main web page, where you can drool over their wide selection of industrial-style systems and large-digit clocks.http://www.brgprecision.com/...and check out their Ebay store here...http://stores.ebay.com/BRG-PrecisionThen take a look at Klockit's radio controlled clock movement with a built-in battery pack for extended life between battery changes...Atomic_Clock_Movement_Battery_Pack.htmlSubscribe to the Podcast in iTunes

Welcome to episode 6. Download the episode here.AtomicPodcast06.mp3(Running time: 40:02, File Size: 37 mb, STEREO SOUND this time!)In this episode, I'll tell you about some of my favorite brands of radio controlled clocks. Here are some links to the companies that I talked about in this podcast...Oregon ScientificLaCrosse TechnologyKlockitCasio WatchesAnd here's a web store that sells a lot of this stuff from a variety of manufacturers...http://www.radiocontrolledclock.com/Finally, I need to show you the Oregon Scientific radio controlled clock (with a time projector) that I talked about on this podcast.Subscribe to the Podcast in iTunes

Here's a special, bonus video podcast. Normally, I don't expect to do video podcasts. But I just couldn't resist this idea.A Simple Radio Controlled Clock Demonstration(Running time, 14:45. File Size, 123mb, Stereo Audio, MPEG4 video optimized for iTunes and iPod. 640x480 resolution.)Enjoy!Here's the lower-quality YouTube version... ...and the conclusion...Subscribe to the Podcast in iTunes

Welcome to episode 5, my special episode about Daylight Saving Time. Download the episode here...AtomicPodcast05.mp3Running time: 36:34, File Size: 16.8 mb, Monophonic.Just a few notes:Remember that the most proper way to refer to Daylight Saving Time is just that. It is not "Daylight Savings Time" nor "Daylight Saving's Time," although many folks probably refer to it by those variations.For more about Daylight Saving Time, try these links...The National Institute of Standards and Technology page about Daylight Saving Time. Short and to the point.The Wikipedia article about Daylight Saving Time. Not as short nor to the point, but if you want a lot of information, try it out.Another spin on Daylight Saving Time from a California government-run web site.A Help page from Microsoft to assist Windows users to make sure their systems are ready to make the proper changes for Daylight Saving Time.This is an activist-type web page proposing a permanent end to Daylight Saving Time. Furthermore, they have a very interesting idea about changing the Time Zone layout of the Continental United States. I'm not saying that this is the best thing to do. I just think it's interesting and I'd never heard of this idea before seeing this web site.Remember these official show notes at http://atomicelmer.blogspot.com and you can expect at least two more episodes of the Atomic Timekeeping Podcast in November. Happy Halloween, everyone!Subscribe to the Podcast in iTunes