Perhaps what I should have said is that the slope of the gain curve for a given value of SLP changes as THR gets higher. See the curve at http://www.ke7x.com/home/miscellaneous-k3-information/agc-4-51
As you can see, when THR is 20, the curve for SLP=15, SLP=7, and SLP=0 are virtually identical. For lower THR levels, you can see the affect of different SLP values. Cheers, Fred ________________________________ From: Elecraft <elecraft-boun...@mailman.qth.net> on behalf of ab2tc <ab...@arrl.net> Sent: Wednesday, February 22, 2017 8:59 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Receiver mush Hi Fred, I think that's fairly easy to explain. *Below* threshold the AGC does not act at all so the SLP settings *should* have no effect. It comes into effect as soon as signal rises above threshold. AB2 TC - Knut Cady, Fred-2 wrote > Thanks Ian I was about to point out those AGC data but you beat me to it. > > To emphasize the comments on SLP a bit, SLP = 0 gives you the best > discrimination between signals of different strength ABOVE the THR level. > When working a pileup I want that. Setting SLP=15 is a flat slope and > makes signals of different level sound the same. You might want that for > general rag chewing. However, since version 4.51, higher THR levels also > affect SLP. For high THR, SLP=0 and SLP=15 are virtually the same. Alan > explained that once but I'm not sure why that is so. > > > BTW, it is easy to make macros to switch between different THR/SLP values > for different operating conditions. > > > Cheers, > > Fred KE7X > > > For all KE7X books (and other information) see > www.ke7x.com<http://www.ke7x.com><http://www.ke7x.com<http://www.ke7x.com>>;. > > > snip> -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Receiver-mush-tp7627220p7627287.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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 Message delivered to fc...@montana.edu ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
