These particular functions are used *only* as part of the AGC calculations. They have to be very fast since they happen in the 48- kHz interrupt handler.
Wayne On May 7, 2012, at 8:33 AM, Guy Olinger K2AV wrote: > My question would be whether DSP log and antilog functions are not > used all over the place, not just the AGC. 73, Guy > > On Sun, May 6, 2012 at 10:06 PM, Wayne Burdick <n...@elecraft.com> > wrote: > All noise blankers cause some distortion -- it's a matter of degree. > NARrow blanking pulses and lower DSP blanker settings will cause less. > > I'm surprised the AGC changes are having this much of a benefit, but > I'm not going to complain. > > Wayne > > > On May 6, 2012, at 6:40 PM, W0MU Mike Fatchett wrote: > > > Loaded the new SW and I miss having NR. I have been tuning around > in > > the 7O piles and it is hard for me to compare as I never really > > experienced what others have. I need to split the antenna and share > > with two K3's and see if I can hear a difference. > > > > Glad to hear the NB is working better. The distortion to some > signals > > with it on was really bad. > > > > Mike W0MU > > > > W0MU-1 CC Cluster w0mu.net > > > > > > On 5/6/2012 7:31 PM, Jim Sheldon wrote: > >> Don, Gary and the group, > >> > >> Wayne's earlier comments about the noise blanker working better > >> turns out to be an understatement to say the least. Not only has > >> the clarity of signals improved by being able to tailor the onset > >> of the SW AGC to start at a higher level and clean up many of the > >> artifacts that created problems before, but it also allows the IF > >> noise blanker as well as the DSP noise blanker to work more like > >> most people's concept of what a noise blanker should be able to do > >> and now does it with FAR less distortion to the desired signals. > >> This includes using heavy blanking with strong signals close in. > >> > >> I've now been able to eliminate some stubborn power line > >> interference that has been plaguing me for a couple of weeks and > >> due to recent tornado damage a few miles South of me, the power > >> company has not had time to find and cure it yet. They've been > >> busy replacing the temporary lines& poles they used to get > >> everyone back on line as quickly as they could after the storm. > >> > >> Now that they are on the right track, I'll bet there will be quite > >> a few more improvements to come. > >> > >> Jim - W0EB > >> > >> ______________________________________________________________ > >> 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 > > ______________________________________________________________ > 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
