I have a KRC2 that is presently using the AUX Bus input to drive an Array Solutions remote antenna switch . At 100 watts , it is usable but at 1500 watts is unusable. This evening I even unplugged the 12vdc supply and it still drove the K3 nuts - froze it once and several times it would show KPA500 (dunno where that comes from , I don't have one ).ONly thing that kills it is to unhook the AUX Bus line. I am not real wild about it changing antennas randomly -- even with two SWR triggers in use.
I won't bore you with the ferrite cores etc I have tried and or still have in place.and other details - - my questions are ---- Anybody have any experience with how much RF filtering I could insert in the 1 foot K3/KRC2 aux bus cable ? OR - is it worth changing to the RS232 bus and using the BCD data from the K3 ? Looking at the KRC2 schematic , it looks like the microprocessor is still in the act with the RS232 inputs going thru it . But I have filtered RS232 data lines with Ferroxcube VK400 2 1/2 turn hi mu ferrite chokes and 0.001's at least on PTT and KEY lines with no problems. I am tempted to sell the KRC2 and build my own BCD RS232 to serial converter, just thought the KRC2 would be a quicker solution. Its overkill for what I need to do. Hank K7HP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
