HFU HF Underground
Loggings => MW Loggings => Topic started by: ChrisSmolinski on January 19, 2020, 1459 UTC
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Not sure what this is on 1720 kHz... I notice it appearing every morning right around 1100 UTC, weekdays and weekends. Pirate? An obvious carrier, but too weak for any audio. The trace around 1719.993 kHz
Thanks to Kilokat7 - this is likely the second harmonic of local WFSI 860 switching from night to day power levels.
(https://i.imgur.com/kA5wYMi.png)