Hi Don, Thanks for the tip (why didn't I think of that?!?). I tied a wire between the PC and K2 chassis and the polling noise dropped dramatically. Although it is still audible, it is diminished to the point where I can "live with it." Hopefully the wire wouldn't introduce any ground loops........
THANKS! 73 Brian N5BCN Don Wilhelm-4 wrote: > > Brian, > > There may be a potential difference (voltage) between your PC chassis > and the K2. Try bonding them together (with a wire) to see if that > helps. No guarantees, but it is worth a try. > > 73, > Don W3FPR > > N5BCN wrote: >> (K2 #6800 w/ KSB2 KIO2 KAT2 KNB2) >> >> Hi, >> >> My first post to the reflector. :-) >> >> I recently completed the KIO2 module (without KPA100) and have been >> controlling the K2 via HRD v5.0. I'm passing the K2 audio via the K2 EXT >> SPKR connection to the the PC Mic In and out to PC Speakers. All is well >> EXCEPT for an annoying buzzing noise coming through the PC Speakers that >> is >> caused by HRD polling the K2. I know this because when I change the >> polling >> interval, the noise changes accordingly. Also, when I disconnect HRD >> from >> the K2, the noise goes away. Even holding down a button, which pauses >> the >> HRD/K2 polling, causes the noise to cease. Of course it starts up as >> soon >> as I release the mouse button. >> >> > ______________________________________________________________ > 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 > > ----- K2 #6800 KSB2 KAT2 KIO2 KNB2 -- View this message in context: http://n2.nabble.com/K2-KIO2-Polling-Noise-in-PC-Speakers-w-HRD-tp3978029p3984037.html Sent from the [K2] 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
