>Still, I'm wondering if this is normal behavior, or whether all these >birdies might be a symptom of something else out of whack. Comments >appreciated.
Dave, just thinking out loud about birdies... I have a few birdies myself but because I live in a noisy environment they don't bother me. I would love to have an S-1 to S-3 noise floor but alas I don't. I am wondering that since cable placement is critical there must be common mode pick up coupling back into the unbalanced circuits at either end of the cables. This is probably much the same as a coaxial feed line picking up local noise and coupling that noise back into the antenna because the antenna has become unbalanced for any myriad of reasons. The traditional way of addressing antenna common-mode pick up due to unbalance is to use common mode chokes. I don't know if TMP cables could be dressed with bead chokes of say #31 or #47 ferrite and obtain enough common mode impedance but it might be worth a try. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ______________________________________________________________ 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
