On 4/27/2012 2:32 PM, ab2tc wrote: > Hi, > > Have you tried the NB (*not* NR)? I find it very effective against power > line noise. I use the setting t2-6, IF off. For a long time I was using a > combination of DSP and IF setting, but found that the IF contribution was > little or non-existing, so I switched to DSP NB only.
Yeppers, my K3 is S/N 642 [it tells me every time I power up just in case I forget :-)] and I have used NB consistently on both CW and SSB. IF NB often drops the level 2 S-Units or sometimes 3. Both IF and DSP seem to be quite sensitive to the character of the noise, I run the DSP between T1-5 and T2-3 usually, IF is usually on NAR 3 or 4. On CW, I've never found much benefit from NR, regardless of the "aggression setting," which I've always attributed to a 150-250 Hz BW. When running in a contest, I'll usually run the BW at 450-500 so I can spot off-freq callers and the NR seems to have slightly more effect at the wider BW. Since I got the P3 however, I can *see* the off-freq callers however and just go to them with RIT. I don't think I've ever really tried NR on SSB until this week, when I noticed the reverb effect. NB is equally effective on SSB as on CW, the setting is usually a bit different though at the wider BW. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org ______________________________________________________________ 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
