Typo. Tnx Don for picking that up. Yes, I mean NR. I like the way the NB works.
I do see a reduction in audio when turning on the NR with SSB. As an example, I usually have the AF control around 9-9:30 position using an external speaker or my Heil headphones. When I turn on the NR I have to use around 10:30-11:00 position for the same audio. This is using F1-1. As I increase (Fx-y) X from one to 4 the audio level reduces. As I increase Y from one to 4 the audio level also decreases. So if I go to F4-4 I have to crank the AF control fully CW and I still am not at the audio level I was with the NR OFF and the AF control at 9:30. Also I can definitely pull out weak SSB signals better with the NR OFF. Right now the noise level is low, so not sure what impact that is having. With CW I do not need to change the AF level. I do like the way the NR works on CW. Typically I have the RF gain control fully CW or close to this position. When running I don't want to be fiddling with knobs or get my ears blown off. Both $1435 and #311 behave the same. I still like the Icom 756Pro III's NR better. I find I can leave the NR ON at a low level to just take the background noise away without causing issues or artifacts with received signals. Because of the varying comments on how the latest NR is behaving I am wondering if there are any other parameters, especially with the AGC that would account for these wide variations? Work in progress. 73, N2TK, Tony -----Original Message----- From: Don Wilhelm [mailto:[email protected]] Sent: Friday, August 28, 2009 7:48 PM To: N2TK Cc: [email protected] Subject: Re: [Elecraft] K3 NR Tony, Did you mean "NR" when you stated "NB"? I find no audio reduction when turning on the NB unless I have the IF NB cranked up to maximum. I first thought the new NR was reducing the audio, but I found it was not so when one is tuned to a signal. The noise reduction is so effective that in my case it almost behaves like a squelch because there is not band noise at all (my noise level is not usually very high anyway) - so there is a natural tendency to turn up the audio gain because there is no noise to hear - but when a signal is present, the audio is then LOUD. As I have stated in prior posts, I *do* find a bit of AF reduction on SSB if I have the NR set to F3-x or F4-x, but I find NR on SSB quite effective at the F1-x or F2-x settings. 73, Don W3FPR N2TK wrote: > Also it would be nice if the audio didn't reduce in volume when turning on > the NB. > > > > ______________________________________________________________ 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
