NIST Radio Station WWVH as it sounded in the 1980s

JB-on-Old-Audichron-TCG.jpg

Many thanks to SRAA contributor, Myke Dodge Weiskopf, who shares the following recording and notes:

NIST Radio Station WWVH as it sounded in the 1980s. To contrast with other recordings of the WWVH station ID, note that announcer Jane Barbe does not say (her now-famous) “Aloha!” at the end of this version.
This recording was found at WWVH in 2015 on an undated cassette labeled “JB on Old Audichron TCG” (which stands for Time Code Generator, the device which reconstructs and plays back Jane’s voice over the air). As such, the precise broadcast year is not known, but it is consistent with the voice and broadcast format of the 1980s, until the introduction of the short-lived digital voice in 1991.
An excerpted version of this recording is found on "At the Tone: A Little History of NIST Radio Stations WWV & WWVH." This unedited version is being shared by special arrangement for the Shortwave Archive.

WWV Time Station (15 MHz): November 3, 2017

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Many thanks to SRAA contributor, Emilio Ruiz, who shares the following recording of WWV and notes:

Sad for the news, the closing of WWV is like close a park, a comunity place where scientifics and enthusiast of radio could learn and experiment not only about time, radio propagation too. I not have much money for bought radiofrecuency equipment for repair or make my own radios, i use WWV for that. 
To go to the future it is not necessary to destroy the past, I'm teaching to children about science and technology and when talk about radio share with they the listen of WWV with old radio receiver (BC-548Q), for they the sound of ticks and the history about radio and time is a amazing topic.
I wrote this review (in Spanish) about WWV for those SWListeners and Radio Amateurs who do not spoke English,--I think can be useful.
I hope radioamateurs of U.S. can reverse the decision.
Broadcaster: WWV
Date of recording: 11/3/2017
Starting time: 14:00
Frequency: 15000 kHz
Reception location: Chiapas, México.
Receiver and antenna: Dipole antenna, Keenwood R-600

1981 & 1982: Various International Time Signal Stations

One of four WWV time code generators in late August, 2014 (Photo: Thomas Witherspoon)

One of four WWV time code generators in late August, 2014 (Photo: Thomas Witherspoon)

Many thanks to SRAA contributor, Tom Laskowski, who shares the following recordings he has transferred from audio cassette. Tom includes the following notes:

I combined several audio files of some of the common time signal stations available back in 1981 and 1982 into one clip. These were made using a DX-302 which had poor image rejection and you can hear some stations behind WWV which shouldn't be there, such as RCI's interval signal at one point.

00:00 - VNG, Australia - August 16, 1981 on 12.000 MHz at ???? UTC
03:02 - LOL, Argentina - October 15, 1981 on 15.000 MHz at 2349 UTC
07:27 - BPM, China - January 16, 1982 on 10.000 MHz at 1255 UTC
08:38 - ZUO, South Africa - December 18, 1982 on 5.000 MHz at 0329 UTC

WWV changes announcement format: July 1, 1971

Shortwave Radio Audio Archive contributor, Brian D. Smith, recently contacted me; I was enthused when he described the recording he was sharing:

"This recording captures the last 5 minutes of WWV’s old format (giving the time every 5 minutes) and the first 5 minutes of the new format (giving the time every 1 minute), which took place on July 1, 1971 UTC.

Apologies for the less-than-stellar audio quality, but I recorded this as a 15-year-old fledgling SWL with limited knowledge of audio recording techniques. So I simply placed the microphone from my cassette tape recorder next to the speaker on the receiver and hit the record button. The signal quality wasn’t the greatest, either — lots of QSB and QRM — but I still managed to get what I was going for.

The resulting recording has accompanied me everywhere since then, preserved only on its original cassette, until 2008, when I finally decided it was time to learn how to transfer it onto my hard drive, burn it onto a CD and stop having to rely on the integrity of 37-year-old audio tape.

Even as a teenager, I regarded the WWV changeover as historic, and felt I should attempt to record it for posterity. Consider yourself posterity!"

Brian received this broadcast on 10 MHz care of a Hallicrafters S-108, with random length of wire attached to the back of the receiver serving as an antenna. Location was Franklin, Indiana.

As Brian mentions, the audio quality is a little rough, but this is still quite a treasure of a recording!

Click here to download as an MP3, or simply listen via the embedded player below:


Recording the 2015 Leap Second via WWV and CHU: June 30, 2015

OOne of four WWV time code generators in late August, 2014

OOne of four WWV time code generators in late August, 2014

Yesterday, I posted a brief article about the leap second that occurred between 23:59:59 June 30, 2015 and 00:00:00 UTC July 01, 2015.

I decided to record the leap second on as many shortwave time station frequencies as possible. The only viable options for me--based on time of day and my reception location--were the WWV frequencies 10, 15, 20, and 25 MHz, and CHU frequencies 7,850 and 14,670 kHz.

I was able to monitor four different time station frequencies simultaneously on the TitanSDR Pro. (click to enlarge)

I was able to monitor four different time station frequencies simultaneously on the TitanSDR Pro. (click to enlarge)

Unfortunately, HF propagation was very poor yesterday, so the higher WWV frequencies--20 and 25 MHz--were completely inaudible, as was CHU on 14,670 kHz. There were numerous thunderstorms in our area, so static crashes were prevalent.

Still, since this was a first attempt to record a "leap second," I didn't want to take any chances.  I had the Titan SDR Pro monitoring and recording two CHU and two WWV frequencies [screenshot], the Elad FDM-S2 recording WWV on 15 MHz [screenshot], and the WinRadio Excalibur on WWV's 10 MHz frequency, as well as recording the whole 31 meter band spectrum [screenshot].

In the end, the strongest frequencies I captured were CHU on 7,850 kHz and WWV on 15,000 kHz. WWV on 10,000 kHz was much weaker than normal and the band was quite noisy--still, it's readable, so I included this recording, too. Recordings follow...

Recordings

The sign above WWV's primary 10 MHz transmitter (2014).

The sign above WWV's primary 10 MHz transmitter (2014).

All of the recordings start just before the announcement of 23:59 UTC.

WWV added the extra second and higher tone, then continued with their top of the hour announcements, including a note about leap second (which begins after the 00:04 announcement). CHU's adjustment included a long second tone and period of silence.

WWV on 15,000 kHz using the Elad FDM-S2:

CHU on 7,850 kHz using the TitanSDR Pro:

WWV on 10,000 kHz using the WinRadio Excalibur:

One interesting note about the 10 MHz WWV recording above: I believe I may be hearing BPM China in the background. I'm curious if anyone can confirm this because I don't know BPM's cadence/pattern well enough to ID it.