[Elecraft] How sensitive is sensitive?

[Barry Cooper]

Hi Everybody,

I have just completed the Part II alignment and was able to listen on =
40m to my K2 for the first time! It works - great!. I was able to hear =
both CW and SSB signals clearly but not particularly loudly through a =
set of 8 ohm Sennheisser audio headphones. So far so good, and the K2 =
met all the Part II alignment criteria within spec. to the extent that I =
could measure. Not having a calibrated signal generator to inject a =
-100dBm signal at 7+ MHz etc. I used a 12 inch test lead clipped to the =
aerial socket and peaked L1 and L4 off air (on air?). I found a birdie =
at 7001.50 which I used to tweak L34 for peak signal, minimum noise as =
suggested in the instructions. My questions are these: a) can I retune =
something (what?) to shift the 7001.50 birdie down outside the band?  (I =
don't need to do this now but would like to do so before finalising the =
tuning) and b) How do I know whether I am within spec for receive =
sensitivity? A side by side aural comparison with my Kenwood TS870S =
using the same antenna seemed to show the K2 down in perceived =
sensitivity but I didn't build the TS870S and the K2 isn't finished yet! =
Any of you experts out there give me a steer on this??

Happy New Year to all - especially Lisa for getting my missing parts to =
me in time for the Christmas holiday.

73,
Barry Cooper
G4RKO

K2 # 2906

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