S-BAND TRANSMITTER ANTENNA FOWARD POWER CALIBRATION WORK SHEET

DATE______________ NAME____________________

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CALCULATIONS

Full scale dBm 90.8 dBm (1200 Kw)

-Coupler attenuation (-62dB nom) ______dB (date last measured) _________

(include coax right-angle adapters

as part of coupler).

-Attenuator 1 ________dB (date last measured)_________

-Attenuator 2 (if used) ________dB (date last measured)_________

-(Attenuator 3 (if used) _________dB (date last measured)_________

TOTAL	________dBm Calculated CW Calibration Signal Level

(nominal level 5.6 dBm - see note below)

Note: the control program's voltage-to-power lookup table is based on a Calibration Signal of 5.6 dBm, so adjust the attenuator pack to make the calculated calibration signal level 5.6 dB +/- 1dB

Inject this cw cal signal at 2380 MHz into the Filter/Limiter/Detector/cable chain and adjust the gain control (R1 of DS2 on Card 2) to give a full-scale meter reading (1200 kW).

Comments:______________________________________________________________

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file: hagen\wpfiles\s_bandtx\ANT_FWD_powercal_worksheet.wpt