For the person who asked.... I used the 15 pin Linear jack on the back of the FTDX-3000 to accomplish a few things. First of all, I used Yaesu pin 2 (TX GND) as the key line for the KPA500, rather than the Elecraft's separate phono cable. Secondly, I used Yaesu pins 4, 5, 6 and 7 to supply the band data to the amplifier rather than rely totally on the KPA500's auto-sense of the frequency. And, of course, pin 3 is the common ground for all of this. At least on the FTDX-3000, ignore the KPA500's instructions about Yaesu pin 8 (TX INH) - just leave it alone.
Also, I used Yaesu pin 11 (TX REQ), and ground, out to a separate push-button switch. When pressed, this forces the FTDX-3000 into a CW carrier (regardless of current mode), and I've set the menu #178 to let it output only 10 watts. So in use, I put the KPA500 to operate, press my little push-button switch which puts 10 watts out to the KPA500, which then generates about 200 watts into my tuner, which I quickly adjust if necessary. Let go of my push-button switch, and I'm good to go with about 25-30 watts preset on the FTDX-3000 power. Jim, K2WU ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
