HP 437B - Page 10

HP 437B
4. Press the ZERO key on the Power Meter, and allow time (5 to 15
seconds) for the Power Meter zeroing routine to finish.
5. Set the range calibrator’s FUNCTION switch to CALIBRATE.
6. Press the Power Meter’s CAL (SHIFTed ZERO) key.
7. Using (2). (+), Co), or G2, modify the REF CF to read 100.0%.
8. Press the ENTER key.
9. Adjust A4R87 (FREQ) for the maximum front panel reading.
5-4 ADJUSTMENTS