I use a large ferrite clamp-on to isolate my short whip/counterpoise from my KX2. Needed tor running digital modes. The large variety will hold 3 turns of RG-58 which seems to be enough for what I need. IIRC I got them from ProAudio Engineering. GL
73, Brian, K0DTJ > On Nov 20, 2021, at 10:10, Julia Tuttle <[email protected]> wrote: > > Hi folks, > > I was tinkering with a whip + counterpoise antenna connected to my KX3 by a > short stretch of coax with BNC connectors a couple nights ago, and > discovered (painfully) that there was quite a bit of RF coming back along > the ground when I bumped the outside of the antenna connector. I know from > experience that the KXPD3 can end up tingly in turn, and I'd like to avoid > that. > > If this were a fixed antenna, I'd just slap one of the LDG RU-1:1 ununs on > it as a choke, but they're pretty chunky -- they're rated for 100 W CW, and > have SO-239 connectors, which would require adapters on both sides in this > setup. > > Does anyone know of a choke more appropriate for this kind of setup? I'd > prefer something smaller (rated for maybe ~40-50 W continuous?) and > natively BNC, so I don't need to juggle adapters. > > More broadly, is this the appropriate way to fix this problem? This was > with the counterpoise extended as best I could, and with the radio powered > from mains (which may have actually made the problem *worse* by providing a > more attractive path than the counterpoise?). > > (As an aside, when components like baluns/ununs or tuners are rated as "100 > W CW, 200 W SSB", do they mean literally a continuous wave, or do they mean > CW at a standard Morse duty cycle of roughly 50%?) > > Thanks and 73, > > Julie > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
