I suggest that the preamp should be OFF on 80-40-30m and usually on 20m. It is mostly useful on higher bands. Also AGC threshold of 5 is probably too low, causing it to activate on band noise and weak signals. Try 10. The way you have it set will result in a very noisy sounding receiver.
Vic 4X6GP > On 13 Oct 2016, at 22:58, "[email protected]" <[email protected]> wrote: > > > > Many thanks Guy for you help. I use K3S from april and can be that I havent > set at the best the rig.I work 90% CW, usually with 500hz 5 pole filter, > sometime with the 200hz 6 pole.Usually I work 40-20-17-15-10 meter, in > contests also 80 meters.In these last months I worked expecially > 40-20-18-15.Usually I have AGC slow for ragchewing and fast for contests, > always qsk with a bug.PRE - noATT- no AGC - slow, sometime fastANT - a Force > 12 C4 yagi (2el 20 - 3el 15 - 3 el 10m - 1 element 40m 17m 12m - also have a > dipole 80m-40m inv vee low on a roof at 5th floor; the yagi is 8m high from > this roof (composite material, including aluminum layer), the buildings > around are lower.RX ANT - noWIDTH - the same as xtal filter, 500hz or 200hz. > in the CONFIG MENU I have: AGC DCY - norAGC HLD - 0.00AGC PLS - norAGC SLP - > 012AGC THR - 005AGC-F - 120AGC-S - 020 > Now with the 500hz filter and agc fast, no preamp no attenuator, ant yagi > to north america, in this moment, I have this noise (local time > 22.00):40m---- S7 20m ----S4 S517m --- S3 S415m - S312 m --- S1 S228mhz--- > S4Some time of the day noise from long range radar, wide spectrum military > emissions or domestic applience or lights noises go up to S9. > You asked the higher signals that I receive: say 20dB over S9 or even 30dB > over S9 from a pair of local hams at the other side of my town. > But I work all kind of signals low and high (327 countries DXCC and a lot of > ragchew CW). > Thanks for your patience :) > Ian IK4EWX > > > > > > > > ----Messaggio originale---- > Da: [email protected] > Data: 13-ott-2016 21.08 > A: "Gian Luca Cazzola"<[email protected]>, <[email protected]> > Ogg: Re: [Elecraft] K3S - K3 Noise Blanker and Noise Reductor > > Hi, Ian, > > Can you possibly tell me these settings, please? You are getting > results very, very different than I do. > > What bands are you using? > > On each band in question, what is the noise floor on the s-meter when > the band is open. > > On each band in question, what is the s-meter reading for the loudest > signals you are receiving when the band is open. > > On each band in question, what are these settings made from the front > panel: PRE, ATT, AGC, ANT, RX ANT, WIDTH, > > What are these settings made in the CONFIG MENU: AGC DCY, AGC HLD, AGC > PLS, AGC SLP, AGC THR, AGC-F, AGC-S > > There is some kind of interaction with NB and NR for each of these. > Perhaps there are one or two of them that are reducing your results. > > 73, Guy K2AV > > > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
