Thanks for answering a question I had about my NIR-12 which worked really nicely with my Yaesu FT950. After using the K3 the past two months and it's awesome DSP and NB, I didn't think it would really do much to improve it.
I guess i will put it in my truck now with my 857D. Thanks, Keith AG6AZ Sent from my iPhone please excuse typos On Jan 11, 2012, at 11:32 AM, "Guy Olinger K2AV" <[email protected]> wrote: > I own a JPS NIR 12. As well as that operated when I first got it, I found > that it was inferior to the AF DSP in the K2. The K3, with the entire IF > available to drive its functions, at the IF level, is superior to both the > K2 and particularly superior to my NIR 12. The only thing that I can > imagine the JPS unit doing is adding to the inevitable artifacts of DSP > processing. > > If you actually do find that the JPS adds something positive to the results > please let me know, I'd like to try and duplicate it. I've not found > anything useful for it to do in a long time. > > 73, Guy. > > On Wed, Jan 11, 2012 at 12:44 PM, Jim Harris <[email protected]> wrote: > >> Hi to everyone, >> Some may recall that a couple of weeks ago I asked about hooking up a JPS >> NIR-12 DSP between my K3 and computer for RTTY contesting. The idea was to >> try to clean up the signal a bit more before the sound card prcesses it. I >> under took this after learning that at least one prominent RTTY contester >> does this with excellent results. But, for me, in a few words it didn't >> work out very well even though I tested it prior to the RTTY Roundup >> contest. There may have been some extenuating circumstances as after again >> hooking the audio straight from the K3 to the computer there still seemed >> to be some muddiness without totally clean decoding. I will have to do >> some more troubleshooting on that. Once I get that sorted out I am going to >> try the DSP again. If I make progress I will report back for those >> interested. >> I might add that the K3 with my K2 in a SO2R combination was not a total >> disaster as I had 917 contacts in about 18 hours of operating. I used a >> Heathkit active filter between the K2 and the computer and found it greatly >> helped clean up the audio making decode in MMTTY the best I've seen in some >> years of RTTY contesting. I used it in combination with some DSP >> processing and XFIL RF3 in the K2. It would have been nice if the MMTTY >> decoding of the K3 audio had been as good. >> Sorry for the bandwidth, but one thing I might add. I use ear buds with a >> small commercially available combiner box to listen to the audio from each >> radio. Shortly before the contest I realized I had a giant ground loop >> someplace. After trouble shooting I found it was caused by the box >> grounding the two radio's together. A hastily put together isolation >> transformer solved that. >> Constructive thought and comments always appreciated. >> >> Take pride in the USA. 73 >> >> >> >> Jim, W0EM >> ______________________________________________________________ >> 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 >> > ______________________________________________________________ > 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 ______________________________________________________________ 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
