[Elecraft] K2 AGC problem on 40m

[jrueschenschmidt at t-online.de]

   Hi all,

   i  would  lik   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 ideas where I can investigate are welcome.

   73 de Joerg (DL3QQ)