Ya I guess its intermodulation then.......
I hear it on multiple radios,in the car,etc............. So its def a problem with them...........
Im sorry for the wrong term.........
If you hear the same problem you described in your original post on multiple radios then the problem
obviously is not in your shack but rather elsewhere.
Intermodulation is the mixing of usually strong signals from two (or more) frequencies which combine to produce
an unwanted signal on yet another frequency. Generally something in your antenna set up or receiver front end
causes the external or internal mixing to produce intermodulation.
Again, since you hear the problem on different radios and even in the car it has nothing to do with your equipment
so you can rule out intermod.
Therefore the problem is elsewhere. The fact that what you are hearing is evenly distributed either side of the
center frequency seems to indicate spurious emissions by the transmitter.