[Elecraft] K2 ALC problem on 40m

[jrueschenschmidt at t-online.de]

Hi all,

i would like to decribe a problem I am faced with my K2. Every evening I
reconized a AGC problem on 40m band. My signal meter shows S8 to S9 and
it sounds like RF-Gain is turned counter clockwise. If i use ATT to
reduce the signal level it does not help. The signals will drop down but
it still sounds like AGC is to high.

I assume it is related to the big signals from broadcast band here in
europe. 

However, further I am not sure if my ALC is working correct. I
recoginized following :

If I disconnect my antenna from K2 and turn AGC ON/OFF I hear a
recognizable difference. I tried to adjust R1 to get the same level. In
my case I got the same level if R1 is set to the minimum value. If I do
so it looks like the RF- Gain pot has no effect anymore. I assume this
is not the intention.

I turned it back to the recommended value to get 3.8 volts now.

Any comments where I can investigate are welcome.



73 de Joerg (DL3QQ)