Brian, Over the years I had about 3-4 K2 on my workbench being so deaf. All of them had T7 on the RF board installed reversed. Check T7 if the green winding (5 turns) really is soldered to the solder lugs numbered 1 and 2. If you reverse this transformer, you will miss about 20 dB gain. 73 de Peter, DL2FI
> -----Ursprüngliche Nachricht----- > Von: elecraft-boun...@mailman.qth.net [mailto:elecraft- > boun...@mailman.qth.net] Im Auftrag von Brian - N5BCN > Gesendet: Donnerstag, 6. Januar 2011 02:11 > An: elecraft@mailman.qth.net > Betreff: [Elecraft] K2 MDS numbers off > > > Hi all, > > I attempted to calculate my K2's (S/N 6800) receiver sensitivity using > an > XG2, but I'm getting numbers way off from what are listed in the XG2 > instruction sheet. > > Using a Fluke 117 multimeter, I'm measuring S+N = 0.132 Vrms and N = > 0.034 > Vrms, which I calculate MDS = -119 dBm. I'm probing the external > speaker > leads (I can't figure out how to get a reading from the headphone or > ext > speaker jacks). I'm using the set up parameters recommended by the XG2 > instruction sheet: AGC Off, RF Gain maxed, Att Off, Preamp On, filter > 500 > Hz, etc. > > The K2 appears to be performing normally except for strange CAL S LO/HI > behavior. Apparently, there might be a problem with the K2's receive > sensitivity which is causing problems with the CAL S LO/HI. > > Any suggestions would be most appreciated!!! > > N5BCN - Brian > > ----- > K2 #6800 KSB2 KAT2 KIO2 KNB2 > -- > View this message in context: http://elecraft.365791.n2.nabble.com/K2- > MDS-numbers-off-tp5894232p5894232.html > Sent from the [K2] 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 ______________________________________________________________ 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
