I seem to recall a recommendation to use a 400 Hz bandwidth with APF. In my own exerience, narrowing DSP bandwidth much below this does not seem to help APF function and rather muddies it.
Chip AE5KA On Sat, Oct 15, 2016 at 11:44 PM, Brian Hunt <[email protected]> wrote: > On the other hand, when used in conjunction with NR a wider DSP BW is > desirable since NR works on uncorrelated noise. Try: > BW= 700-1000 Hz, > NR= ~ 5-3 > APF= ON > Great for pulling out weak signals on an uncrowded band. The NR settings > of 5 and above mix processed and non-processed data so the APF has > something to work on. My theory, anyway. > > 73, > Brian, K0DTJ > > > On Oct 15, 2016, at 19:52, Ken Arck <[email protected]> wrote: > > > > The narrower the bandwidth, the better signal to noise. > > > > That should answer your question :-) > > > > Ken > > > > > > At 07:39 PM 10/15/2016, Robert G Strickland wrote: > >> When using the APF, does it make a difference which bandwidth has been > selected? Or in other words, does APF work better on top of a narrow or > wide bandwidth, or is selected bandwidth irrelevant? Thanks. > >> ...robert > >> -- > >> Robert G Strickland, PhD ABPH - KE2WY > >> [email protected] > >> Syracuse, New York, USA > >> > > ______________________________________________________________ > 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 > Message delivered to [email protected] > ______________________________________________________________ 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 Message delivered to [email protected]
