NORCAL NC2030 Manual page 101

With a relatively strong signal into the front end of the receiver (-80 to -90 dbm), tweak trim caps C23
and C25 for the strongest signal. You will have to go back and forth between the two trim caps several
times to get the best response. This peaking should be done in the center of the band.
The use of an AC volt meter and a signal generator are the best way to do this, but it can also be done
using "on-the-air" signals. Other frequency sources that could be used include the Elecraft XG2
receiver test oscillator or a harmonic marker generator such as the old VE3DNL marker generator that
Norcal used to sell. One caution: The audio output needs to be kept low enough to keep it from
limiting. If the audio is in limiting (0.28v pk-pk or higher), the proper peak might not be seen. Turn
down the audio volume as needed.
Norcal NC2030 v5 12-18-05
Page 101 of 128