I'm not suggesting that it would be possible to calculate a solution, but rather provide audio feedback to a program so it could do what I do: listen for a tone, adjust the shift until it disappears, tune up (or down) to the next 100 Hz segment, adjust the shift, repeat until you hit a segment with just noise. (I'm also not proposing that it scan the whole band looking for birdies. I'll do that. But when I find one, I'll hit a button that says 'take it out'.)
73 == Joe KB8AP On Feb 20, 2009, at 7:21 PM, David Gilbert wrote: > > Personally, I don't think that's going to be likely. The birdies > don't all tune in the same direction, and they all aren't in the > same position relative to a 100 Hz boundary. As a result, some > birdies are best removed by a shift in one direction, and others by > a shift in the other direction. Birdies near a 100 Hz boundary > (i.e., 14174.101) often require both ... a shift in one direction > for one 100Hz segment and in the opposite direction for the adjacent > segment, but even that generalization is not always optimum. > > Since the birdies are mixer products of UHF harmonics and their > strength varies from rig to rig depending upon cable placement, I > don't think it's going to be very practical for the software to try > to know what generated a birdie on any particular frequency in order > to decide how best to remove it. > For me, I'm just glad to be able to remove them manually. > > 73, > Dave AB7E > > > Joe Planisky wrote: >> I agree, the "birdie-be-gone" feature seems to work quite well at >> removing fast tuning birdies within the limitations of its current >> implementation. I hope there will eventually be software commands >> to allow the process of removing a birdie to be automated. It's >> not hard, just a little tedious. >> >> 73 >> -- >> Joe KB8AP >> >> >> >> ______________________________________________________________ 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
