This is VERY interesting. I have never even thought much about AGC in my 8-year old K3, so I did that just now. I changed the THR to 12 and the SLP tp 003. Will watch for the difference. I am really a CW operator here.
Thanks for the good wisdom! On Thu, Jul 2, 2020 at 7:10 PM Wes <[email protected]> wrote: > Please explain to me where this non-linearity is generated. If 1 volt of > RF > (really I-F) gain reduction causes 10 dB of gain reduction, prey tell what > difference does it make if the 1 volt is generated by an AGC circuit or a > manual > control? Either way, *all* signals are reduced 10 dB. What's non-linear > about that? > > Wes N7WS > > On 7/2/2020 3:18 PM, David Gilbert wrote: > > > > > > What are your AGC settings? I have a K3 with the new synths and I use > almost > > the least AGC possible ... THR = 12 and SLP = 000. > > > > AGC creates non-linearity, the non-linearity is most pronounced at the > signal > > level where it kicks in, and non-linearity creates mixing. Do the math > for > > the sum and difference frequencies when you have multiple signals very > close > > to each other within the receive passband. > > > > 73, > > Dave AB7E > > ______________________________________________________________ > 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] -- 73 de Ted Edwards, W3TB and GØPWW and thinking about operating CW: "Do today what others won't, so you can do tomorrow what others can't." ______________________________________________________________ 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]
