It reminds me of methods to receive weak signals with other radios. Adjust crystal filters for a single peak, reduce RF gain, play with ATT.... K3 makes these steps unnecessary.
All what K3 needs for NR (and NTCH) is to put them inside the AGC loop, like for instance in IC7000. NR at level 1 or 2 does not reduce the signal strength too much but also does not bring signals out of the mud. Ignacy I've found that adjusting AGC THR makes quite a difference. I normally have THR at 4 but when I need the NR, I adjust THR to 6 or even 7. I set NR at 2-1 or 2-2. With this setting, I normally do not have to turn AF gain up. 73, Gary W7TEA Ignacy wrote: > > I am not the first one writing that NTCH is outside the AGC loop and that > NR reduces the signal strength. With NR, less on strong signals but much > on weak signals. For example, signals that are buried in noise seem to be > brought to life with NR 3-3 but the AF gain needs to be all the way up, or > more. > Ignacy > > > John Lemay wrote: >> >> Ignacy >> >> Maybe your rig has a problem. NR does not affect the signal strength at >> all. >> It does however reduce the audio level, depending on how aggressive the >> setting is. >> >> Regards >> >> John G4ZTR >> >> > > -- View this message in context: http://n2.nabble.com/Request-for-NR-and-NTCH-inside-AGC-loop-tp2160153p2239028.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
