[Elecraft] AGC-Preset

Michael van Hauten vanhauten at t-online.de
Mon Feb 7 16:49:56 EST 2005


Dear All,
Page 47 in the (error) manual says: Adjust R1 on the control-board to 3.8 V.
I can only reach 3.6V at pin 1 of U2
(  R1 is fully turned counter clockwise).
With no signal at the antenna (IF-Gain MAX) i have 3.58 V at pin 1 of U2.
With iF-Gain at MIN i have the 4.6V. This seems ok. But the AGC @Saturation
is only 4.6V, far away from the expected 6.9V.
The radio sounds good.  The DC-voltage at U12, Pin 5 is only 3.8, not the
expected 5.0.
Is there anything wrong?
Thanks for your help!

Michael, DC0ZO
K2 #4691



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