Lyle: Maybe a quick lesson on proper use of the NR filter would help us. Thinks like....If F1-1 doesn't work, do we go to F1-2 or F2-1 or should we skip a few F's. Should we turn NR off then back on every time we make a change? Does changing NR settings while receiving a cw signal matter or should one change settings with no signal? I guess I got spoiled by the IC-7800's NR. With it, you just turn it on and the noise disappeared. Steve N4LQ n...@carolina.rr.com ----- Original Message ----- From: "Lyle Johnson" <k...@wavecable.com> To: "Craig" <vk...@yahoo.com> Cc: <elecraft@mailman.qth.net> Sent: Thursday, August 27, 2009 9:10 AM Subject: Re: [Elecraft] K3 NR triggering
>> I also seem to get the impression that the selected NR setting is not >> exacty the same as the selected level within in the menu versus turning >> the DSP NR on and off without entering the menu, if that makes sense. > > > The NR is an adaptive filter. When you turn it off, it is completely > reset: all buffers are flushed and filter coefficients zeroed. > > When you move from setting to setting with the NR adjust feature, the > buffers are not flushed nor are the coefficients reset. Instead, the > new settings are applied to the current state of the filter. So, it > takes from a few tens of milliseconds to perhaps a couple of seconds for > the filter to adapt to the new settings. > > 73, > > Lyle KK7P > > > ______________________________________________________________ > 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
