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Loggings => HF Mystery Signals => Topic started by: I-18667-BI on March 05, 2026, 2009 UTC

Title: military transmission on 7162 LSB?
Post by: I-18667-BI on March 05, 2026, 2009 UTC

Does anyone know what mode this might be?
It looks like a multi-tone digital signal with many parallel carriers in the waterfall.
Could it be some kind of military HF data transmission?

(https://i.postimg.cc/y6gLS6Fp/Schermata-2026-03-05-alle-20-59-55.png) (https://postimg.cc/grpVCWt3)

Title: Re: military transmission on 7162 LSB?
Post by: Token on March 05, 2026, 2110 UTC

Quote from: I-18667-BI on March 05, 2026, 2009 UTC

Does anyone know what mode this might be?
It looks like a multi-tone digital signal with many parallel carriers in the waterfall.
Could it be some kind of military HF data transmission?

(https://i.postimg.cc/y6gLS6Fp/Schermata-2026-03-05-alle-20-59-55.png) (https://postimg.cc/grpVCWt3)

This is NATO Forces Link-11, or possibly Link-22 in Link-11 backwards compatibility mode.

The signal is in USB, not LSB, and to be properly tuned you would be on 7159 kHz, USB.

T!

Title: Re: military transmission on 7162 LSB?
Post by: I-18667-BI on March 06, 2026, 1800 UTC

Thanks for the explanation!
Why is it being transmitted on the ham band?