5-14 888-2406-002
WARNING: Disconnect primary power prior to servicing.
Maintenance and Alignment
STEP 7 Raise the transmitter power very slowly until the Forward Power
meter reading is 60 watts (or 00.06 kW). If Forward Power is not yet
calibrated, then an external meter will have to be used.
STEP 8 Press [HOME, MORE, CONFIGURATION C,B]. You should now
be at the screen shown in Figure 5-7, A/D RFL PWR. Re-adjust
R128 until the A/D RFL PWR reading is 700.
Figure 5-7 A/D RFL PWR Reading
[HOME, MORE, CONFIGURATION C,B]
STEP 9 Set the Transmitter LCD meter (the right-hand display) to read RFL
PWR in kW. If it reads VSWR press and hold the button for about 5
seconds and it will change to kW.
STEP 10 Press [HOME, MORE, CONFIGURATION C,D]. The will take you
to the Reflected Power Cal screen and should look like Figure 5-8.
Set this screen to 00.06kW. Press and hold [D] and then press
[BACK] to calibrate the reflected power meter to 60 watts and
save the information. The display will flash “Calibration Done”
very quickly at the bottom of the Diagnostics Display.
Figure 5-8 Reflected power CAL Screen
[HOME, MORE, CONFIGURATION C,D]
STEP 11 Shut the transmitter off and return the Reflected Power Directional
Coupler back to its normal position.
To Next Page
Loading...
