I’ve done almost nothing with HF for a while. I’m still demoralized by all the interference.
Turns out the what I was receiving wasn’t related to power supply… Or anything else I can track down.
This is what I receive on 40m with a Discone (VHF/UHF) and a Airspy HF+ Discovery.
Can just see FT8 at 7040Khz. And there is a cool looking signal at 6950Khz too.
Finally got a laptop last week. If I can replicate the interference with a small antenna I might be able to get an idea where it’s coming from.