I've been messing with this 20 mile link for a LONG time, replaced everything top to bottom, obviously its interference/noise. Doesn't matter which frequency I choose, one side is always crappy. 300/24Mbps are the air rates, NV2, Nstreme, doesn't matter which one, sometimes drops from 24 to 18. Both signal sides are good. Question is, which side is having the interference problem? The one transmitting or the one receiving? I guess it could go both ways. Anyone seen this issue before with one side good and the other side very low data rates?

Interference is on TX side (where air rate is 300Mbps), probably caused by another radio on same board/box.