I agree with Guy and Ken. Adi 2E0TTX
On 29/05/2011 23:05, Ken Roberson wrote: > Hello all, > > I agree with Guy. > > This could be turned on when CONFIG:SMTR MD is > set to ABS. > > Ken K5DNL > ------------------------------------------------------------ > > --- On Sun, 5/29/11, Guy Olinger K2AV<[email protected]> wrote: > >> From: Guy Olinger K2AV<[email protected]> >> Subject: Re: [Elecraft] RF-Gain& S-Meter (again) >> To: "Mike Morrow"<[email protected]> >> Cc: [email protected] >> Date: Sunday, May 29, 2011, 2:33 PM >> Exactly, which is what most people >> expect, without knowing that they >> expect it, since 99% of ham receivers have done that since >> AGC first >> showed up. >> >> This behavior is CODED INTO the K3 firmware algorithm for >> the S-meter >> presentation. It is not mandated by the way hardware >> is wired. It is >> a choice made by the coder of K3 firmware, not the designer >> of circuit >> board traces. The firmware COULD be coded to always >> show the signal >> level at the antenna input regardless of RF gain setting, >> which is >> what I would prefer. This could be turned on when >> CONFIG:SMTR MD is >> set to ABS. >> >> 73, Guy. >> >> On Sat, May 28, 2011 at 11:04 PM, Mike Morrow<[email protected]> >> wrote: >>> The more common method for the past 65 years or so has >> been to use the AGC >>> circuit to reduce stage gain for both automatic AND >> manual gain control: >>> (1A) AGC, which as it gets larger for stronger signals >> increases bias >>> voltage to the RF and IF stages. This is the >> input to the S-meter. >>> PLUS >>> (1B) Manual RF gain, which manually increases the bias >> voltage in the >>> AGC circuit to the RF and IF stages, and thus >> directly affects >>> the S-meter just as any AGC bias voltage >> increase would. >> ______________________________________________________________ >> 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
