If the problem is related to receiver overload, than a trap at the BCB's operating frequency will correct the problem. Unless the problem is related to a non-linear junction (rusty fence wire, etc.) generating local IMD or harmonically related signals due to rectification.
If the problem is the actual presence of a harmonic radiating from the BCB transmitter, than no amount of filtering at the ham's location will cure the problem. Using a receive filter on 1860 will attenuate both the harmonic signal and desired amateur signals. There can be advantages to having a high pass filter that limits BCB signal levels, but it will not cure this problem. The traps belong at BCB transmitter site if it is a real harmonic.. If I had this problem I would explore using a noise cancelling system (MFJ or one of the Russian eBay kits) to try and null the direction the signal is coming from. Pete W1BR _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
