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PTX-LCD
Turn the EXT AGC - FWD trimmer clockwise until the reading of amplifier output
power begins to decrease.
Set exciter power to minimum setting.
Disconnect the dummy load from the amplifier and replace it with a mismatch load
so that part of the output power is reflected back and set amplifier meter to measure
reflected power.
Gradually increase exciter output power until the reflected power reading on the
amplifier meter is just above the desired threshold.
Turn the EXT AGC - RFL trimmer clockwise until the reading of amplifier reflected
power begins to decrease.
The trimmer calibration procedure is completed. Thanks to this system, the user may
choose the preferred power setting at the exciter, while amplifier forward and reflected
power remains within the set thresholds.
User Manual
Rev. 3.1 - 31/08/10
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