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Author Topic: 60.0KHz CW  (Read 2162 times)

Offline Looking-Glass

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60.0KHz CW
« on: March 05, 2016, 0050 UTC »
Logged a signal on 60.0KHz CW from 1740z this morning sending the letter "T" nine times then "E" as the tenth character, this was repeated over and over.  "T T T T T T T T T E" was the format sent.

The signal was 519 at 1745z and peaked 559 on my Grey Line at 1905z.  Station location or purpose unknown, any suggestions or comments?

(Yaesu FT-2000D with 200 feet of wire, 127kms west of Sydney at Mount Piddington 3,654 feet ASL.)
« Last Edit: March 05, 2016, 1605 UTC by Looking-Glass »
Condobolin, NSW.

Grid Square:  QF37ub

Yaesu FT-1000D, Yaesu FT-2000D, ICOM IC-736 HF/50MHz, ICOM IC R75 & Tecsun S-2000 to 450 feet of wire, 27MHz 1/2 wave CB antenna converted to 21MHz & a multi band vertical of dubious reliability.

Offline Looking-Glass

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Re: 60.0KHz CW
« Reply #1 on: March 05, 2016, 1608 UTC »
Have identified this station as Time Signal station WWVB Fort Collins, Colorado, USA with a transmitter output of 50Kw, 539 report at 1533z this morning.  Transmits a "dit" every ten seconds and "dit-dit" on the minute.  With lower noise WWVB very clear this morning.
Condobolin, NSW.

Grid Square:  QF37ub

Yaesu FT-1000D, Yaesu FT-2000D, ICOM IC-736 HF/50MHz, ICOM IC R75 & Tecsun S-2000 to 450 feet of wire, 27MHz 1/2 wave CB antenna converted to 21MHz & a multi band vertical of dubious reliability.

Offline Josh

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Re: 60.0KHz CW
« Reply #2 on: March 05, 2016, 2253 UTC »
Some info on what wwvb sends;
"The 60 kHz signal is broadcast continuously at a rate of 1 bit per second using pulse width modulation to produce a binary coded decimal (BCD) format. The time code contains the year, day of year, hour, minute, second, and flags that indicate the status of Daylight Saving Time, leap years, and leap seconds. WWVB identifies itself by advancing its carrier phase 45 at 10 minutes after the hour and returning to normal phase at 15 minutes after the hour. Again, visit the website for details."
http://www.rfcafe.com/miscellany/factoids/kirts-cogitations-226.htm
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