HFU HF Underground
Loggings => HF Mystery Signals => Topic started by: Shortwave_Listener on January 28, 2023, 0043 UTC
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Exact frequency is 6942.42 kHz. S9+10 with the KX4AZ KiwiSDR.
0042 UTC-Digital?
0315 UTC-Still going
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6942.43
carrier and noise
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This is some kind of utility station/data mode or something seriously wrong with the ute transmission!
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It's called a multitone signal because there are multiple carriers (a carrier is sometimes called a "tone"). This can be a way to carry more information than just a single carrier.
Now at 0225 there is our "old friend" the military Link-11 signal at 6943.5 as well.
(https://i.imgur.com/Lm4Axp2.png)