[Elecraft] K2 Low Sensitivity on some bands

Mon Jun 16 00:24:01 2003

Chris

It's worth checking alignment of the band pass filters, my K2 was low sens
on a couple of the higher bands, not by much, but enough to make the pre-amp
amplify noise rather than signal. With the tighter band pass filter settings
in the later K2 (and when A to B mods are done), the filter settings are
quite narrow. Also, don't forget the S-meter is not exactly generous when
set as per the manual.

73 Dave, G4AON
K2 #1892

----- Original Message ----- 
From: "Chris" <[email protected]>
To: <[email protected]>
Sent: Monday, June 16, 2003 12:49 AM
Subject: [Elecraft] K2 Low Sensitivity on some bands

I am experiencing low sensitivity on 20m and up.  It seems fine in 80 and
40m, and I am not so sure about 30m.  However, from bands 20m and up, the
sensitivity is very low.  S5 signal on other receiver is only s1~2 on K2,
regardless of modes.

I did basic check up based on some information I found here, but I don't
have any clue why it only happens in bands 20m and up.  Any help or clue?  I
am making it ready for the Field Day, so I will have to stick with 80 and
40m if I don't fix it now.

I will appreciate any input.  CAL FIL doesn't seem help much.