I wonder if there is anything other than the $8.95 Radio Shack contact
or tuner cleaner that can be used on the Control Unit 'Calibrate'
control? How about WD-40 or sylicon spay dry it out with air?

By messing with it the meter sometimes displays the correct location of
the beam. Per the previous responses I realize the problem is probably
with calibration control located in the rotor - I am not ready to climb
the tower and remove the rotor. That is big deal!

Dick - AA5VU