Can you really do much better than +/- 100-200 Hz using a 50 kHz span? That requires a marker placement accuracy of +/- 2 pixels, a 4 pixel window, which is less than 1% of the width of the display (4/480 = 0.25%). If so, I must concede that you're a much better marksman than I am!
The idea is to make life easier when cruising around the band when using a *wide* span. Earlier today I opened it up to 70 kHz so I could see +/- 35 kHz whilst listening around 7.040 Mhz and try as I might, when I used the marker to select a CW signal I often ended up outside the passband of my 400 Hz filter. At 70 kHz each pixel represents a 150 Hz bin (approx) so I'm off by even 2 pixels I'm outside the filter passband. Jumping from signal to signal within a wide panadaptor span would be easier with a fine tune feature, and work for SSB signals as well as CW. I guess I'm spoiled by using the mouse in point/click/fine tune mode with LP-Pan/PowerSDR-IF in a 96 kHz span where there is no need for extreme accuracy in pointing, it's fast and easy. I think similar functionality would enhance the P3, just a suggestion. "Snap Tune" is an interesting idea too. 73, Bob NW8L On Wed, Aug 11, 2010 at 8:39 AM, Bill W4ZV <btipp...@alum.mit.edu> wrote: > > > Bob Cunnings wrote: >> >> Yes, Ref Cal has been performed on both K3 and P3. The issue is ergonomic. >> > > Another thing I do is to align the Spectrum MKR with the Waterfall (no MKR). > The Center Line in the Spectrum Display interferes with the signal and MKR > so it's easier to align if you use Split Display mode with Spectrum MKR only > and align to the signal in the Waterfall immediately below. > > As I said before I also hope for some sort of Snap Tune, but I can do much > better than +/- 100-200 Hz with the current setup. > > 73, Bill > > P.S. Depending on which firmware rev you have there may not be a Waterfall > MKR available. There is in beta 00.30 but I don't use it for the above > reason. > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/P3-a-modest-proposal-for-QSY-tp5410950p5412535.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
