Re: [Elecraft] NB - DSP/IF
Jim, The effectiveness of the NB and NR will depend on the type of noise you encounter - that is why the K3 implements both. The NB works best on impulse type noise. It will have little effect on noise that makes more of a 'frying bacon' sound. The way it works is to detect the noise early in the receiver and then blank out a later receiver stage so the noise pulse is not heard. The NR works well on that 'frying' sound. In the K3, NR is implemented as a signal enhancement function, rather than reducing the noise, it looks for patterns that would be found in a real signal and passes those along while rejecting the rest. If I recall the proper term is 'signal correlation'. 73, Don W3FPR Jim - W6VAR wrote: I've had my K3 for about a month now and the NR seems to work very well. However, I have had little luck with either the DSP or IF NB when I hear what sounds like electrical noise. There does not appear to be significant differences between any of the settings and I don't detect an appreciable differrence in audio (which I would at higher levels of DSP). Thoughts? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] NB - DSP/IF
I have to say, I haven't been able to tell a great deal of difference, but I think that is because I don't have that kind of noise at my QTH. I do find NR works really well though :-) 73 de M0XDF, K3 #174 -- Always remember, half the people in the world are above average intelligence! On 14 Oct 2008, at 06:31, Jim - W6VAR wrote: I've had my K3 for about a month now and the NR seems to work very well. However, I have had little luck with either the DSP or IF NB when I hear what sounds like electrical noise. There does not appear to be significant differences between any of the settings and I don't detect an appreciable differrence in audio (which I would at higher levels of DSP). ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] NB - DSP/IF
I've had my K3 for about a month now and the NR seems to work very well. However, I have had little luck with either the DSP or IF NB when I hear what sounds like electrical noise. There does not appear to be significant differences between any of the settings and I don't detect an appreciable differrence in audio (which I would at higher levels of DSP). Thoughts? Jim - W6VAR -- View this message in context: http://n2.nabble.com/NB---DSP-IF-tp1331657p1331657.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
