CW or SSB or both? How old is the K3? There was a DSP swapout that addressed this. For SSB I drop the FC on the filter down to about 1.0 which helps. There were some other settings that might help. Check the archives.
Mike W0MU W0MU-1 CC Cluster w0mu.net On 4/28/2012 5:35 PM, Bob K6UJ wrote: > Don, > I usually leave the preamp on and not really needed as you said. I will try > backing down the RF gain > a tad also. Thanks for the info. > I found too, unless I have other noise issues to deal with, setting the NR at > F1-1 > reduces the hiss quite a bit, and no impact at all on the sig. Just seems to > give a quieter background, very nice. > > Bob > K6UJ > > > On Apr 28, 2012, at 4:01 PM, Don Wilhelm wrote: > >> Bob, >> >> The K3 has more reserve gain than most other receivers, and the lack of >> signals cause the AGC to set the receiver top full gain. >> >> With other receivers, I usually can run the preamp to advantage, but with my >> K3 it is fine without the preamp on. >> >> Do you have the preamp on? If not, perhaps you want to turn on the >> attenuator. To tell if you have enough gain, disconnect the antenna and >> then reconnect it. If the receiver can hear the "antenna noise" you can >> reduce the gain even further - perhaps by reducing the RF Gain. >> >> 73, >> Don W3FPR >> >> On 4/28/2012 6:42 PM, Bob K6UJ wrote: >>> I have a Kenwood TS-590S for a back up to my K3 and it has a noticeably >>> quieter background than the K3. >>> I believe we should be able to address this with the NR in the K3, I'm >>> still learning how to adjust the NR. >>> >>> >>> Bob >>> K6UJ >>> >>> >>> >>> On Apr 28, 2012, at 12:15 PM, hawley, charles j jr wrote: >>> >>>> I remember that my Kenwood 850 was quiet like that compared to my Yeasu >>>> 990. Possibly how the agc is handled by Kenwood? >>>> >>>> Sent from my iPad >>>> >>>> On Apr 28, 2012, at 8:07 AM, "Bill"<b...@w2blc.net> wrote: >>>> >>>>> I have had my K3 for a couple of months - so I am still learning. >>>>> >>>>> At this point, my primary concern is the amount of background hiss that >>>>> I have when no signals are being received. For example: When on 75 this >>>>> AM I am listening to a local net. When no one is talking the background >>>>> hiss rises. >>>>> >>>>> When I switch to my TS-480, signals are just as strong and everything is >>>>> the same - EXCEPT there is nearly zero background hiss. I use the ATT on >>>>> both rigs. I much prefer the near FM silence of the 480. >>>>> >>>>> I have already reduced it somewhat by use of the RX Equalizer. However, >>>>> it needs a lot more reduction to get to what I feel is an acceptable >>>>> level. Of note: I live in a rural area that has no background noise - >>>>> daytime level on 75 meters is zero. >>>>> >>>>> Suggestions would be most appreciated. >>>>> >>>>> Bill W2BLC >>>>> >>>>> -- >>>>> IN GOD I TRUST (but, NOT a single politician) >>>>> ______________________________________________________________ >>>>> 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 >>> ______________________________________________________________ >>> 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 ______________________________________________________________ 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
