Hi Robin Firmware 3.25 S/N 3142 Born on Date 6/13/09 The last firmware NR was a bit on the to aggressive side making everything sound like it was coming through a pipe or hollow sounding. I found my self not using it often to fatiguing over time to listen to, especially on SSB. This revised NR is a bit on the other side of the spectrum while the finish product is not hollow sounding or through a pipe sounding it does not offer a lot of reduction. I tried dual dsp years ago on my ft1000d using two dsp units in stereo to really kill the band noise it works ok the JPS NIR 12 uses this approach I believe. This could also be done with a out board unit in a speaker I put the board from a AM Com ClearSpeech dsp in my Yaesu station speaker I like it a lot but have not tried that speaker yet on the K3 yet.
I almost want to say there has been a tweak of the audio response also sounding a bit more full less intense with a hiss on the high end, which I pulled down using the RX EQ, am I imagining this or is this a real tweak? I like the SSB audio response (with no DSP NR influence) better now. I really need to have two K3's side by side to test or A/B the firmware release to be absolutely sure, I do keep notes on the first impression after an up date, better sounding is noted. Could be the code writers are "range finding" shooting long then short to zero in nirvana? As a cw first operator who is not afraid to go very narrow on the filters I did not find myself using the NR a lot the subtle influence is closer to my liking then the to aggressive approach. The Hi Q ringing of the audio filters of the past is something I never liked or could operate using. My ft1000d with a 500 pitch tweak the radio narrow shift /width narrow 250 Collins filter get it the best that can be then toss in the APF which did not add ringing was all good, it just made the signal louder. So might it be nice to have both in the next release the 1-4 2-4 could be like but with a bit of tweaking for more Reduction of Noise but not to much and then the 3-4 4-4 come back in from the other side of to much NR where it was hollow through a pipe response. Coming in from both sides a bit at a time might satisfy every one. Sorry for the first post I hit send before spell check and completing my thoughts on this matter. Regards Art ka9zap PS Hopping for a Audio Peak Filter APF like my ft1000d has. Robin Diane Goldstein wrote: > hi all... elecraft/k3 newbie here (new owner of gently-cared-for > #2102)... have read everything i can find, but can't dig up an > answer, so this is my first post to the list: > > i've downloaded the latest beta firmware and have read all the posts > reciting joy and jubilation (my words) in connection with the > operation of the Noise Filter... but i think i'm missing something... > i work almost exclusively SSB and find that i'm listening to stations > buried in the QRN... i -thought- this was where the Noise Filter was > suppose to help, but when i turn on the NF and adjust it from 1-1 to > 4-4 i seem to hear a somewhat filtered/somewhat distorted version of > the input signal. i understand that the filter works automagically, > but as i go from X-1 to X-4 it sounds like some kind of notch filter > is being applied in increasing amounts, but not in a > meaningful/useful way... then it goes from X-4 to Y-1 and the > narrowing 'hiss' starts all over again, this time with a slightly > harmonic distortion. > > on very strong signals i can sometimes find a setting (usually 3-2 or > 3-3) that sharpens up the audio just a bit, but those signals usually > are loud enough to blast through the noise anyway... what i'm looking > for is help with the S2-S3 stuff. > > any advice or perhaps a pointer to an audio/video file showing the > filter in (proper) operation? > > btw, the NB seems to work just fine as does the notch filter. > > many thanks and 73! > robin (K9RDG) > ______________________________________________________________ > 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
