A balun in line with the antenna can also attenuate signals on the AM BCB. I have found that feeding the antenna (in my case a CF 135-ft zepp) directly into the KXV3 (bypassing the Balun Designs "Tuner" balun) adds an additional 25 dB increase in signal strength at the low end of the AM BCB. This complicates the switching arrangement a bit, but a ceramic DPDT knife switch came to the rescue.
John W2XS -------------------------------------------------------------------------------------- AM Broadcast - yes, that explains what I noticed, seems to really > attenuate anything below 1200 Kc It's about 20-25 dB by the time you get to 500 kHz. This helps protect the K3's PIN-diode T/R switch from extremely strong low-frequency signals. If you want to bypass the high-pass filter, you can install a KXV3 module and connect your AM broadcast RX antenna to RX IN. -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Some-Questions-tp6678982p6680643.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
