Thanks for the explanation Wayne. 73, Yngvi TF3Y
On Tue, Feb 24, 2015 at 9:57 PM, Wayne Burdick <[email protected]> wrote: > Just to complete the point about this: The K3 tested probably didn't have > its S-meter calibration ("RX gain cal") completed before we sent it to Rob, > an oversight on our part. This procedure is fully automated by the K3 > Utility program, and definitely would have corrected the sensitivity > threshold issue Rob observed. > > 73, > Wayne > N6KR > > > On Feb 24, 2015, at 1:54 PM, Wayne Burdick <[email protected]> wrote: > > > Some on this list are still mistaking this column of Sherwood's chart as > *receiver sensitivity*. I believe it is a measurement of AGC threshold. The > K3's receiver sensitivity (MDS) is excellent by any measure; see the "noise > floor" column. (Side-note: It's interesting that the preamp-off sensitivity > of the tested K3 was -136 dBm, while that of the Flex 6700 was -118 dBm -- > an 18-dB difference. One would have to leave the preamp ON much more often > with the '6700. As Sherwood noted, this maximizes the '6700's dynamic > range, but you'd also be hitting the A/D that much harder.) > > > > 73, > > Wayne > > N6KR > > > > > > > > On Feb 24, 2015, at 12:24 PM, "Chester Alderman" < > [email protected]> wrote: > > > >> > >> > >> _____________________________________________ > >> From: Chester Alderman [mailto:[email protected]] > >> Sent: Tuesday, February 24, 2015 1:59 PM > >> To: 'Yngvi (TF3Y)' > >> Cc: 'Elecraft Reflector' > >> Subject: RE: [Elecraft] Sherwood Engineering Tests > >> > >> > >> Hi Yvgvi, > >> > >> I wonder, given atmospheric noise levels, if that is really going to be > >> noticed by the operator. I seriously doubt It would be noticed in a > contest? > >> > >> 73, > >> Tom - W4BQF > >> > >> > >> -----Original Message----- > >> From: Elecraft [mailto:[email protected]] On Behalf Of > Yngvi > >> (TF3Y) > >> Sent: Tuesday, February 24, 2015 1:26 PM > >> To: [email protected] <mailto:[email protected]> > >> Subject: Re: [Elecraft] Sherwood Engineering Tests > >> > >> These are interesting stats. > >> > >> One thing I noticed was the apparent loss in sensitivity as measured by > >> Sherwood. This is probably not a big issue for most these days with the > ever > >> increasing noise levels but for the few in silent locations, incl. > >> some DXpeditions this might be an issue. > >> > >> Any comments on this? > >> > >> 73, Yngvi TF3Y > >> http://www.tf3y.net > >> > >> > >> ______________________________________________________________ > >> 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] > > ______________________________________________________________ > 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] > -- http://www.tf3y.net ______________________________________________________________ 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]
