On Sun, 22 Mar 2009 19:15:39 -0700 (PDT), Bill Strong wrote: >Plenty of QRN on the low bands especially in the summer. I meant the local >man-made stuff.
I understand, and that was my point. Reducing the total bandwidth at the input of the sound card from 2.8 kHz to 200 Hz will make a signficant improvement in the signal to noise ratio. It won't matter on strong stations, but it can help a lot on weak stations. My QTH is fairly quiet too, but never dead quiet (unless the band is dead). A few nights ago, K6SRZ (about 80 miles N of me) spotted 4U1UN as "ESP on the West Coast" on 160M. He was ESP at my QTH too, with some QSB -- at 250 Hz bandwidth. I screwed the IF down to 100 Hz and was able to copy him, just barely. I waited for his signal to peak, and worked him. This was CW, but the same laws of physics apply to PSK31. :) 73, Jim K9YC ______________________________________________________________ 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
