Since I am on a 50 x 100 foot lot, it is impossible for me to separate my rx antennas from my tx antenna. Of course on transmit, preamps and the NCC1 are deactivated, but even so, the NCC1 had internal relay chatter (there are around nine PC board mounted relays inside). Small RF chokes in series with the DC power line to the box eliminated the chatter. I may have added bypass caps inside it but I can't remember if I did that or not. But if so, that wasn't enough. The chokes did the trick.
Merry Christmas Rob K5UJ _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
