Please lets not dumb it down for contesting. Let's optimize it. ! You can choose to use the extra peaking it provides with a little more knob turning or choose to not use it. Ask how many 160 meter contesters will use it !!! If you are a CW contester I guarantee you will choose to use !!
Bob K6UJ On Oct 29, 2010, at 9:58 AM, Guy Olinger K2AV wrote: > APF has a very significant improvement on weak signals in the noise. > I completely agree with prior posters. HOWEVER... > > I would like to be able to ***VARY THE Q*** with the width control and > LEAVE IT ON with a mild Q, and sharpen it as required. If I can back > it out to 2 dB with a width function I would probably leave that on > all the time and grind in as needed. I already do that with Width in > weak cases that are on frequency. ONLY when APF is on could we have > the WIDTH tap toggle between APF Q displaying APF Q=3 in lower display > and between Roofing/DSP bandwidth displaying BW 0.40??? You could do > the same thing with SHIFT to go back and forth between adjusting > Roofing/DSP SHIFT displaying FC *0.45 and APF *0.45. Using WIDTH to > control Q is intuitive. > > When APF is in there is no moderate setting, it takes over the > passband and makes copy of a signal up band difficult. It will > require repeated use of DUAL PB to go in and out for weak signals and > back out for normal use. Use of a HOLD function as a frequent change > is a problem. In trying to get used to the HOLD on DUAL PB to go in > and out of APF to hear in the rest of the channel, I repeatedly hit > NTCH instead. HOLD's are only good for settings that persist for a > while during operation. > > E.g. I don't need APF ONLY as a better substitute for 50 Hz. I need > it to work ALSO as a milder center emphasis inside the 400 Hz roofer, > and be able to twist a knob somewhere to move between mild and sharp. > Even with what appears to be only a 2 dB peaking around 450, the MP > was improved inside its excellent dual INRAD 400 selectivity. > > If this is not done, it will be very difficult to use it well in a > contest. No easy-to-use variable Q is a deal-breaker for me. In the > end for contests it will cost Q's and will have to tell people to > leave it off, just like NR. Only turn it on for a really weak one if > you can remember how, and then turn it right back off. Then when I > get home chasing weak DX I'll turn it all back on again, and work some > stuff I couldn't hear before. > > 73, Guy. > > On Fri, Oct 29, 2010 at 11:01 AM, drewko <[email protected]> wrote: >> Yes, I realize that. I would like to compare what is heard using the >> APF filter to what is displayed by BeaconSee with its sub-noise signal >> recovery algorithms. >> >> 73, >> Drew >> AF2Z >> >> >> On Fri, 29 Oct 2010 10:55:38 -0400, you wrote: >> >>> >>> I think you may be confused about what APF is. It is NOT a waterfall or any >>> kind of visual indicator. It IS an Audio Peaking Filter (APF) meant to >>> enhance weak signal audio using the processor between your ears. It will >>> not automatically show you where weak signals are in a spectrum, but if you >>> know approximately where to look (either from a Packet spot or waterfall >>> trace) it can help your ear/brain decode the CW audio buried in noise. >>> >>> 73, Bill >> >> ______________________________________________________________ >> 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 >> > ______________________________________________________________ > 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 ______________________________________________________________ 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
