Hi folks slightly off topic
running 2 x K3 80 and 40 meter cw. Separate antenna about 50 meters apart. 100 watts. Power supply 14 volt dc via batterys + dc charge. The 80 meter second harmonic is very strong. No surprise so have done the usual 80 meter band pass filter and quarter wave stub For what ever reason the harmonic is still very present..darn.. oddly has a rasping note not pure carrier. A close ham about 400 meters away can also hear the 2nd hamonnic, band pass in or out makes little change. Possible is related to coax feedlines running close for some distance ? Both are very well choked at feeder and TX Happy to respond off topic cheers from ZL Paul zl1ajy -- View this message in context: http://elecraft.365791.n2.nabble.com/Slighty-off-topic-80-meter-second-harmnic-how-to-stop-tp7614506.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
