Yes, Ref Cal has been performed on both K3 and P3. The issue is ergonomic. It's a matter of how accurately I can place the marker in the wider spans, especially when I need to move quickly. My near vision isn't so great, and the pixels on the display are tiny. At, say, a span of 50 kHz each pixel on the display is a 100 Hz bin (approx). If I'm off by a couple of pixels when I position the marker and tap SELECT, I'm at the very edge of my 400 Hz CW filter. Point and click tuning doesn't have to be such an exacting exercise if you could just place the marker approximately and then rapidly and accurately fine tune the signal by ear, all with the SELECT knob.
I don't know what span you normally use, but I like using a span of at least 50 kHz so I can observe activity on the entire CW sub-band, and this would make hopping from signal to signal easier. Perhaps the implementation of external monitor support will help by expanding the display, but that's off in the future. Bob NW8L On Wed, Aug 11, 2010 at 7:56 AM, Bill W4ZV <btipp...@alum.mit.edu> wrote: > > > Bob Cunnings wrote: >> >> >> With the P3, when I move the marker and tap the SELECT knob to QSY to >> the frequency of some CW signal, rarely end up at zero-beat, often at >> least 100-200 Hz away, sometimes more. >> > > While I agree with the need for a better zero-beat QSY function (I'm spoiled > by Skimmer's decoder dots), you should be able to come much closer than +/- > 100-200 Hz. Have you checked both your K3's Ref Cal (do that first) and the > P3's Ref Cal procedure? Using a 100 Hz BW (i.e. +/- 50 Hz) in the K3, I can > consistently hear QSY signals inside the 100 Hz passband. > > 73, Bill > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/P3-a-modest-proposal-for-QSY-tp5410950p5412345.html > Sent from the [K3] 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
