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Other / Re: Unknown 100 khz BW signal 5140 khz 1:15 utc 11-28-13
« on: December 08, 2013, 2353 UTC »
I did not record the audio but remember it was rather simple compared to other
HF radar or sounding signals I have observed.
I also watched the audio on the "scope" and it did not indicate anything other than the frequency sweep.
With AM demodulation it was a simple "swish swish"
With SSB demodulation it was a simple "chirp chirp"
HF radar or sounding signals I have observed.
I also watched the audio on the "scope" and it did not indicate anything other than the frequency sweep.
With AM demodulation it was a simple "swish swish"
With SSB demodulation it was a simple "chirp chirp"