On Wed, 22 Apr 2009 19:11:51 -0400, "Mike Harris" <[email protected]> wrote:
Being concerned by your report, I checked my K3 #806 and did not experience the symptom you describe. Tom, N5GE K3 #806, K3 #1055 XV144, XV432 W1 and other small kits. http://www.n5ge.com >G'day, > >Just in case anyone is interested. > >Today I was investigating the effectiveness on a local 6m low level signal >of the various combinations of NO PREAMP, K3 PREAMP ONLY, PR6 ONLY, K3 >PREAMP + PR6 in preparation for a 6m EME test. > >All was as expected then I turned on the PC. With the two preamps in line >there was a 1-2 S-point increase in background noise (SSB bandwidth). >This extra noise vanished when I removed the "RS232" cable from the K3. >The cable is actually the one I made up for the K2. > >Touching the shell of the connector to the K3 shell didn't restore the >noise, only when actually inserting the pins did it come back. > >No noise being carried on the two audio leads to/from the PC so no big >deal the disconnect the RS232 during the moon run. > >No further investigations to date. > >Regards, > >Mike VP8NO > >______________________________________________________________ >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 ______________________________________________________________ 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
