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Davicom FMBM, Reference Manual, March 2015
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Press Menu again and you will see:
The voltage shown is the actual voltage
present at the FMBM’s back-panel
Deviation-monitor output. With a small
screwdriver, adjust the “RF Power Monitor Adjust” on the right side of the FMBM’s front-panel
to obtain a 5V output that will correspond to the nominal RF Power at the input. The transfer
function is 0.5V/dB. Pressing the Menu button again will exit this mode and allow you to scroll
back up (or down) to the Menu mode exit.
Pwr Mon Cal
4.57 V