bwilson

It looks like you are displaying the "DX EiBi A-25 database" there, not the stored database which you are editing. Right-click the band bars above the labels area to select the labels set you want.

Looks like Citizens Band radios to me. There are a lot of truckers running big rigs with under-current power supplies that will do that. When the high-band propagation is good the 11m band (27MHz) is full of those "variable-frequency" transmitters. That the tuckers don't know their transmitters are doing that is the amazing thing.