Wwvb смотреть последние обновления за сегодня на .
Special announcement for WWVB upgrades May 2021, next video shows power cycles to the WWV transmitter. The audio generator on this announcement was heavily over modulated, note the carrier drop out during clipping. Recorded in Fort Collins, Colorado by Tyler Stampfli, KA0KA using Apache Labs Anan8000 20kHz ground wave.
A remotely controlled, precise analog wall clock like that one from IKEA is a cool thing. Today we will build our own remote control for such analog and digital clocks. All we need is a Raspberry Pi and a few electronic components. And we will learn something about resonance frequencies, capacitors, and ferrite antennas. Let’s hack! I am a proud Patreon of GreatScott!, Electroboom, Electronoobs, eevblog and others. You can do the same using an ESP32: 🤍 In this video, we will: - Learn how radio-controlled clocks work - We will build a ferrite antenna for receiving and transmitting time signals - We will test and optimize it - We will install software on our Raspberry Pi to create signals for DCF77, WWVB, MSF, and JJY In the end, I should have a precise time in my lab. Even if it is in the basement Links: Software: 🤍 DCF77 Clocks: 🤍 WWVB Clocks: 🤍 or 🤍 Ferrite Rods: 🤍 Copper wire: 🤍 Instructions: 🤍 Supporting Material and Blog Page: 🤍 Github: 🤍 My Patreon Page: 🤍 My Bitcoin address: 19FSmqbBzb5zsYB1d8Bq4KbxVmezToDNTV If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel For Banggood 🤍 For AliExpress: 🤍 For ebay.com: 🤍 🤍 🤍 🤍 Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job #IKEA_Hack #DCF77 #WWVB #JJY
special event in 2019 here: 🤍 one fact: it costs $416 a day to power wwv & wwvb in Fort Collins, Colorado. I was one of the lucky ones. It felt like you had found the golden ticket 🤍 the Willy Wonka Factory. FOR NERDS! It was awesome. This video is for Education Purpose Only. I hope all the hams in our area and beyond will like this video. It was run and gun and sorry for the bad video. Peace and Keep Ham Radio Alive and I thank the Tour Guide who works at WWV. By the way, I am Aaron NØWAR in Loveland, Colorado! I am good on QRZ.COM. Peace to you and I love to spread the word about ham radio!
If our ears could hear the 60 kHz radio signal transmitted by radio station WWVB as a 1000 Hz tone, this is what it would sound like. This is a one minute sample of WWVB's radio signal recorded on Februrary 1, 2009 beginning at 0246 UTC. Reception took place in New Jersey, over 1600 miles from WWVB's Fort Collins, Colorado transmitter using a specialized receiver of my own design. WWVB's 50 kilowatt radio signal blankets the continental United States, and conveys the current time, year, day of the year, UT1 offset, leap second, and leap year information at a data rate of one bit per second. It is widely used in setting radio-controlled "atomic" clocks and watches, typically during nighttime hours when its signal is the strongest. WWVB's carrier drops 17 dB in amplitude at the beginning of each second. It rises back to full power a fraction of a second later producing an amplitude shift keying signal. The number of milliseconds it takes to rise to full power after the start of each second conveys binary '0's (200 ms), '1's (500 ms), and frame 'M'arker pulses (800 ms) that receivers interpret to determine the current date and time. Further information on WWVB is available at: 🤍
We are going build a 60 KHZ WWVB antenna over the course of this multi-part video. Please Subscribe to see the following parts
In this video I build a simple receiver to listen to WWV - the US government standard time signal. I'll explore how direct conversion receivers work and get into some of their shortcomings as compared to other receiver designs.
In this video I go In Depth with the Junghans MEGA app and I talk about other, similar apps. Here are a couple of TV advertisements for Mr. Microphone. The first is the American version... 🤍 ...and the next one appears to be a British remake of the commercial which starts out with exactly the same script... 🤍 Meanwhile... if you'd like to see some of my previous tips about how to deal with radio reception difficulties involving "Atomic" radio controlled clocks and watches, here's that video from me... 🤍 But what about this video right here and right now? Well, it turns out that if you are having radio reception problems with your radio controlled watch or clock, there are some apps that will help you simulate the atomic time broadcasts using your smart phone or tablet. It's rather impressive that someone figured out how to do this. Lots of folks have commented over the past few years about an app called Clock Wave which costs just $1.99, but it turns out that there are free alternatives too. I decided to try out the free Jughans MEGA app and I was impressed with the results. Generally, when it comes to my clocks and watches, radio reception problems aren't an issue where I live. I'm only about 350 miles from the atomic time transmitter WWVB in Fort Collins, Colorado. But, even around here, radio reception might be a problem around buildings made of concrete and steel or in areas where there are lots of other devices which create radio interference. And, of course, these apps can be very handy in places where the atomic time transmitters are out of range anyway. A word of caution: If you use one of these atomic time transmitter apps you may have to experiment with the exact placement of your clock or watch in relation to your smart phone or tablet. The watch or clock should be very close to the smart phone or tablet. A slight adjustment in any direction could make all the difference. Also, be sure that your smart phone or tablet is set to the correct time zone and that your clock or watch is also set to the correct time zone. With many Casio watches that have the Multiband 6 receivers, the watches won’t even try to receive atomic time data if they are set to time zones (or the cities) which are considered out-of-range.
WWVB Atomic Clock
In this video, an atomic watch (Mudmaster GWG-1000) is used to compare the time code broadcasted from the WWVB station near Fort Collins, Colorado. It is possible to hear a maritime storm warnings WWVB continuously broadcasts digital time codes, using very long electromagnetic waves at a frequency of 60 kilohertz, which are automatically received by timekeeping devices in North America (Canada, USA and Mexico), keeping them accurate to a fraction of a second. WWV and WWVH broadcasts can also be heard by telephone and about 2,000 calls are received daily, according to NIST. (To listen to the broadcasts by phone, dial +1-303-499-7111 for WWV and +1-808-335-4363 for WWVH).
This 1 Hour recording was taken from the Utah WebSDR at a frequency of 5Mhz, which was pretty strong at the time of recording. There is a good clean signal throughout the recording. WWV is a shortwave (also known as "high frequency" (HF)) radio station, located near Fort Collins, Colorado. It is best known for its continuous time signal broadcasts that begun in 1945. WWV was first established in 1919 by the Bureau of Standards in Washington, D.C. It has been described as the oldest continuously-operating radio station in the United States. WWV broadcasts over six transmitters, each one dedicated for use on a single frequency. Radio Transmitter is a channel dedicated to bringing you long lengths of non-looping radio signal audio for sleep, studying, or just to have something interesting to listen to. Leave a like and comment to let me know what you want me to tune to next!
Low Frequency utility signal WWVB "Atomic Clock" at 60 kHz. Many gadget catalogs and high-tech stores sell "radio-controlled" clocks and wrist watches that are able to receive these radio signals. These clocks and watches synchronize themselves with this atomic clock. This feature is made possible by a radio system set up and operated by NIST the National Institute of Standards and Technology, located in Boulder, Colorado. NIST operates radio station WWVB, which is the station that transmits the time codes. More info at: 🤍
Here is what the WWVB signal sounds like on my ICOM IC-7600. While it means nothing to the human ear, this signal coming from the US National Institute of Standards transmitter in Fort Collins, Colorado is used to automatically synchronize the time on compatible "atomic clocks"
Arduino Uno with Ethernet shield and display / button shield. This is connected to a tiny WWVB receiver and antenna. The Arduino starts up and grabs the time from 188.8.131.52 if available and switches over to the WWVB time once a full frame is received (1-2 minutes). USB is just for power. Feb 13 2017 addendum: There's a company called Quartex that actually makes a WWVB clock movement as a replacement for those cheap battery movements in wall clocks. It's a WWVB receiver connected to motors that turn hands, all nicely packaged. I ordered a couple of these am betting that one might be able to tap the digital signal off the receiver and feed it to an external decoder. Made in USA and cheap (under $14). Check 🤍klockit.com or even Amazon. If nothing else, it may provide clues for other receiver options (IC's), etc.
Here we take a look at decoding the MSF Time signal from the UK using CLOCK from MultiPSK. 🤍 🤍 🤍 Would you like to help me fund a new camera for the Channel? Then visit my GoFundMe page here: 🤍 Products used in my videos can be purchased through my Amazon storefront. US ► 🤍 UK ► 🤍 Support This Channel by becoming a Patreon. My Patreon ► 🤍 My Twitter ► 🤍 My Amazon ► 🤍 My PayPal ► 🤍 Merch Store ► 🤍 If you enjoyed this video please help me out by subscribing and help me get to my next Milestone of 50,000 Subscribers! Music: 🤍bensound.com #TechMinds #Atomic #SDRPlay
Here is part 3 of the WWVB 60 KHz antenna build. Here we tune the antenna using no test equipment except for the HF Discovery. I made this video to show that we have many tools at our disposal even if we don't own a lot of test equipment. Don't be afraid to experiment!!! W1VLF
Reception of WWVB on 0.060 MHz
This is a demonstration of the Clock Wave app for iOS. WWVB emulator / simulator / alternative. WWV shutdown shut down threat. Recorded for the GizWiz show: 🤍
LF (30-300 kHz) region. Time frame format 🤍
Here's a sneak peek of my WWVB (60 kHz) receiver in operation.
Here is part 2 of the series on building your own WWVB ferrite loop low noise antenna. We wind the coil , explain how the antenna works, define a parts list. Check it out , and please subscribe for part 3 coming soon. W1VLF
A good quality recording of WWVB made with my Bt878 tuner card Analog to Digital Converter. I hooked a headphone cable to the antenna jack of my Grundig G5 and then clipped a ground wire to the internal shield of the Grundig radio. This is the actual recording, it is not the powerline noise that my previous video had.
I won this nixie clock in a government auction; it it is a one-off build that came from the University of Victoria. I reverse engineered the clock and established that it is made for WWVB. Over two evenings I designed a quick WWVB 60kHz receiver and shielded loop antenna. I am 1689.73km from the station in Ft. Collins, Colorado, so the signal here isn't especially strong but it comes in very clear.
The binary coded decimal signal that is modulated onto the 60 kHz WWVB radio signal is visible by its effect on a fluorescent light bulb, with no wires connected to the bulb! The bulb is located inside the antenna matching unit that connects the transmitter to the antenna.
Recorded in San Jose, Costa Rica Radio: RFspace Cloud-IQ SDR Antenna: E probe (10 meter high) Software: SDR console V3, multipsk+clock Aditional information: 🤍
Upgraded with this part: 🤍
WWVB 60 kHz received on received on SDRplay Radio Signal Processor model RSP-1A. Time format explained at 🤍 Ideally, an efficient antenna system requires a radiating element that is at least one-quarter wavelength long. However, at a low frequency such as 60 kHz, it is difficult to construct an antenna that large. The wavelength of 60 kHz is about 5000 m, so a one-quarter wavelength antenna would be 1250 m tall. Read how NIST solved that transmitter and antenna problem at 🤍
demonstration of WWVB receiver signal input into HCS12 Dragon Board
Tuning a couple of signals down in the Long wave band. 60.00 is WWVB (the signal that the clocks read), 382 is a local beacon. Also, the signal on 72 MHz is the little airport shed that's just under a mile away from me. Southern Illinois, USA / 03;05 UTC (10;05 PM, my local time) / RSPdx receiver with SDRuno V1.41 software / the antenna tonight I'm using is my DXE-RF-PRO-1B magnetic loop about 8 feet off the ground on tripod / September 21st 2021 / Last day of Summer 2021 / lite rain and thunderstorms rolling through.
Initial description of, disassembly and examination of damage to battery terminals done by leaky alkaline batteries. Some thoughts as to how I am going to proceed in fixing the damaged terminals SkyScan Model 86722ALU - 🤍skyscanatomicclocks.com Info on WWVB Radio station on Wikipedia 🤍 0:00 - Initial description of clock functions 3:02 - Opening and internal exam 6:43 - We have entry & cursory exam 11:35 - Desoldering battery terminals 16:35 - Exam of damaged terminals and thoughts of refurbishing battery terminal surfaces.
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 (🤍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 🤍scannerschool.com/session38 Please support the Scanner School podcast. Visit 🤍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!
I ran a fun test this morning, circa 1430 UTC. I connected the AirSpyHF+ Discovery to my 2m by 2m Crossed Parallel Loop Antenna, reference this post 🤍 Note that the antenna no longer has a preamp and is now passive, and is on a rotor. The combo does a great job of receiving WWVB and is quite directional. I am about 1,600 miles from WWVB. Inserting a 400 kHz low pass filter helps things a little, presumably that allows the Discovery to run at a higher gain?
Let's use a WWVB Clock Kit to make a self-setting clock. This is the perfect solution for daylight savings time clock changes. 0:00 Intro 3:55 Finding Center 7:27 Making a Hole 12:55 Mounting 19:23 Watching Time Fly 22:07 Wrap Up
It's alive! This is a quick walk-through of the junk-box WWVB receiver on the first day it heard WWVB (you can hear it playing through my computer speakers in the background). A partial schematic (the RF section) is in this tweet: 🤍
Cleaning of the alkali leak damaged battery terminals, coating exposed metal with "Liquid tinning solution", reassembly and testing. Holiday Music sampled from Youtube "Copyright Free" selection below 🤍 0:00 - Results of cleaning 7:02 - Final Cleaning before using Tinning Solution 11:32 - Prep for using Liquid Tinning Solution to coat bare Copper / Brass areas 14:39 - Holiday Festivities with Liquid Tinning Solution. 19:52 - Re-soldering battery terminals - with some difficulty 36:43 - Beginning of reassembly 46:20 - Battery installation and signs of life 51:20 - Successful reception of WWVB and programming of clock.
I’ve finished preliminary coding and now in the testing phase. Found this funny little bug which I plan to squish shortly.
WWVB at 60 kHz recently changed the way they send the time of day information to "Atomic Clocks." This video shows the new PSK format as received at my location in Glendale, CA. It was made by sampling the output of the preamp of my Spectracom 8170 receiver and feeding the 60 kHz signal into a GPS referenced HP-3586B receiver tuned to 60 kHz. The 15625 Hz I.F. output of the HP-3586B was fed to the Horizontal side of a scope and the Vertical side of the scope fed from a GPS referenced HP-3336B signal generator tuned to 15625 Hz. You can learn more about how I make these measurements by visiting: 🤍 Burt, K6OQK
One minute of the WWVB signal recorded at 10:00 PM local time. WWVB is located near Fort Collins, CO, and is operated by the National Institute of Standards and Technology .
7-Segment Four Digit Real Time Clock (Date and Time) with WWVB Time Sync & 360 LED Display. Features: * Four bright 1" Red 7-segment displays * Sixty bright LED's mark off the seconds (burst mode effect option) * Display Date and time (12hr or 24hr) utilizing DS1307 * Utilizes a WWVB receiver module and included antenna to automatically synchronize to UTC time.* * Supports UTC time zone adjustments * Automatic DST time adjustments * Cycle mode between time and date or steady * Plays Westminster chime on the hour and chimes the hour count (night time quiet mode or may be disabled) * 24hr reoccurring alarm (intermittent or continuous) with 10 min snooze alarm * External relay output control * Real Time Clock (RTC) stores Date and time when powered off * Mode and three setup switches * Double sided silkscreened and solder masked high quality PCB (8.5"x8.5") * 12V DC adapter (not included) * PIC16F886 based project electronic kit * Available in kit or fully assembled and tested 🤍pictronicsonline.com mypictronics🤍aol.com