Command Technologies COMMANDER HF-2500 Manual page 9

TUNING PROCEDURE CONTINUED
5. If your planned operation is on SSB, you should adjust the load
control slightly counter-clockwise, reducing the output slightly about 30
to 50 watts. This adjustment is necessary to insure that the amplifier is
sufficiently loaded to handle the plate current peaks caused by the
complex voice patterns during SSB operation. Nominal plate and grid
current readings during SSB operation will be about 30 to 40% of the
key down CW readings.
CAUTION: THE TUNE AND LOAD AIR VARIABLE CAPACITORS MAY ARC IF
MAXIMUM DRIVE IS APPLIED BEFORE THE AMPLIFIER IS PROPERLY TUNED.
ALWAYS FOLLOW THE DECRIBED TUNE UP PROCEDURE TO AVOID
CAPACITOR ARCING. ARCING MAY ALSO OCCUR IF YOU ATTEMPT TO TUNE
INTO AN ANTENNA WITH A VSWR GREATER THAN 2:1.
If you should need any further assistance tuning this amplifier, feel free to call
us here at 1-800-736-0443 and our staff will be happy to help you. If you are
outside the United States we are available at 011-419-459-4689.