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Author Topic: All 1 PPS pip / pulse / tick logs here please  (Read 47478 times)

Offline Token

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #120 on: February 08, 2019, 1643 UTC »
Update on frequency ranges I have seen the signal in:

6320 to 6510 kHz
7095 to 7300 kHz
8100 to 8450 kHz
10100 to 10150 kHz
12200 to 12450 kHz
12885 to 13105 kHz
14060 to 14350 kHz
18065 to 18160 kHz
21200 to 21300 kHz

T!
T!
Mojave Desert, California USA

Offline Rizla

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #121 on: February 09, 2019, 1950 UTC »
UNID time signal/pip was on 14304 kHz this morning (2/9)  a few minutes before 1900UTC, it sounded exactly like T's recording.

Tried to get recording together but was off at 1900. Anybody else heard it lately?
« Last Edit: February 10, 2019, 0551 UTC by Rizla »
QTH: Sonoran Desert, AZ. Kenwood TS-820S, FT-891, Tecsun 880, neophyte in a forest of antenna wire.

Offline N0TZU

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #122 on: May 21, 2019, 1324 UTC »
Hearing the 1 PPS intruder right now (1323Z, 21 May 19) on 14164 kHz
Berthoud, CO USA
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Offline jasmine

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #123 on: June 12, 2019, 0341 UTC »
i think i've picked this up tonight in Washington state. 03:40 UTC on 6519.00 khz, USB
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Offline Matambale

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #124 on: June 18, 2019, 2331 UTC »
Evident on 10105 kHz at 2330 UTC
(Courtesy Simplio)
« Last Edit: June 18, 2019, 2350 UTC by Matambale »
Littleton CO

Offline Traveling Wave

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #125 on: June 23, 2019, 1655 UTC »
1652 UTC - The PIP is doing its thing on 14.310 kHz, strong signal 20dB to 40dB over S9 in WNY.
Location: Western New York ( Niagara Frontier)
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Offline Strange Beacons

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #126 on: December 18, 2019, 2253 UTC »
I'm not sure if it is the same signal that has been discussed in this thread, but I recently recorded a mystery "time signal" at 7475 kHz in AM mode.

Offline KM0NAS

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #127 on: December 25, 2019, 2327 UTC »
Yes, on 7450 kHz today, Christmas day. December 25th. Hearing right now since I tuned in around 11:00 UTC.
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Offline Token

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #128 on: December 26, 2019, 0332 UTC »
I'm not sure if it is the same signal that has been discussed in this thread, but I recently recorded a mystery "time signal" at 7475 kHz in AM mode.

No, this is not the signal being discussed in this thread.  The signal here is short pulses, like CW dits once per second, not a carrier with ticks on it.

T!
T!
Mojave Desert, California USA

Offline Strange Beacons

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #129 on: December 26, 2019, 1622 UTC »
I'm not sure if it is the same signal that has been discussed in this thread, but I recently recorded a mystery "time signal" at 7475 kHz in AM mode.

No, this is not the signal being discussed in this thread.  The signal here is short pulses, like CW dits once per second, not a carrier with ticks on it.

T!

Thanks for the response. Anyone have any idea what the 7475 kHz signal I recorded might be?

Offline alleycat

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #130 on: November 26, 2021, 0326 UTC »
Occasional HF monitor here. Have not been following threads regarding these type of signals lately, but I was hearing one earlier (02:30z on 26 Nov 2021) that alternated between 1 s pips and short (1 s interval) data bursts. The pattern appeared to match CHU to some degree, except (1) Wrong frequency; (2) No announcements; and (3) went off the air prior to 03:15z.

Any ideas about this - especially the data format? (I'm not yet up to speed on the Universal Radio Hacker software.) Refer to the following:

Waterfall: https://www.lutins.org/temp/sdr/6965/6965_waterfall.jpg
Audio: https://www.lutins.org/temp/sdr/6965/6965_audio.mp3
Spectrogram of pips: https://www.lutins.org/temp/sdr/6965/6965_pip_spectrogram.jpg
Spectrogram of data: https://www.lutins.org/temp/sdr/6965/6965_data_spectrogram.jpg

Thanks for any ideas!
allen lutins - KC2KLC
Binghamton, NY
Rigs: Yaesu FT-897D, Elecraft KX3, RTL-SDR Blog V3 & SDRPlay RSP1A
Antennas: G5RV Jr dipole, Alpha Antenna EZMilitary portable vertical & Grove Omni-II discone
eQSLs welcome: kc2klc@lutins.net

Offline Token

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #131 on: November 26, 2021, 1634 UTC »
Occasional HF monitor here. Have not been following threads regarding these type of signals lately, but I was hearing one earlier (02:30z on 26 Nov 2021) that alternated between 1 s pips and short (1 s interval) data bursts. The pattern appeared to match CHU to some degree, except (1) Wrong frequency; (2) No announcements; and (3) went off the air prior to 03:15z.

Any ideas about this - especially the data format? (I'm not yet up to speed on the Universal Radio Hacker software.) Refer to the following:

Waterfall: https://www.lutins.org/temp/sdr/6965/6965_waterfall.jpg
Audio: https://www.lutins.org/temp/sdr/6965/6965_audio.mp3
Spectrogram of pips: https://www.lutins.org/temp/sdr/6965/6965_pip_spectrogram.jpg
Spectrogram of data: https://www.lutins.org/temp/sdr/6965/6965_data_spectrogram.jpg

Thanks for any ideas!

Sounds and looks kind of like G-TOR to me.

T!
T!
Mojave Desert, California USA

Offline alleycat

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #132 on: November 27, 2021, 0407 UTC »
I'm not aware of any implementation of G-TOR that uses data packet bursts of well under 1 second, at 1 second intervals. It looks much more like CHU's Bell 103-compatible 300-baud modem signal. SigIDWiki notes that "CHU is the only time signal station that uses this format", but since this almost certainly isn't a time station, maybe they're using it anyway? I have no idea what Windows-compatible software might be utilized to attempt a decode.
allen lutins - KC2KLC
Binghamton, NY
Rigs: Yaesu FT-897D, Elecraft KX3, RTL-SDR Blog V3 & SDRPlay RSP1A
Antennas: G5RV Jr dipole, Alpha Antenna EZMilitary portable vertical & Grove Omni-II discone
eQSLs welcome: kc2klc@lutins.net

Offline Token

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #133 on: November 27, 2021, 1455 UTC »
I'm not aware of any implementation of G-TOR that uses data packet bursts of well under 1 second, at 1 second intervals.

Although it was quite a while ago, I have seen it done (on an established G-TOR frequency) that way for test purposes.

However, G-TOR for this signal was a WAG on my part, totally going by ear and sight.

It looks much more like CHU's Bell 103-compatible 300-baud modem signal. SigIDWiki notes that "CHU is the only time signal station that uses this format", but since this almost certainly isn't a time station, maybe they're using it anyway? I have no idea what Windows-compatible software might be utilized to attempt a decode.

How often do you see this signal?  Since you posted, I have looked for it but not seen it.  Of course, I am a ways away from your location.

T!
T!
Mojave Desert, California USA

Offline alleycat

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Re: All 1 PPS pip / pulse / tick logs here please
« Reply #134 on: November 29, 2021, 0015 UTC »
I forgot to mention the frequency - 6965 kHz (probably obvious from the filenames I provided). That was the first time I came across this one, and I haven't seen it since, although as I mentioned, I don't spend a lot of time monitoring MW (when I do have the time to turn on the radios, I'm generally engaged in FT8 communications (callsign KC2KLC).
allen lutins - KC2KLC
Binghamton, NY
Rigs: Yaesu FT-897D, Elecraft KX3, RTL-SDR Blog V3 & SDRPlay RSP1A
Antennas: G5RV Jr dipole, Alpha Antenna EZMilitary portable vertical & Grove Omni-II discone
eQSLs welcome: kc2klc@lutins.net

 

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