[Elecraft] K2 MDS numbers off

[Brian - N5BCN]

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

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K2 #6800 KSB2 KAT2 KIO2 KNB2
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