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10. Calibrator Amplitude Adjustment
Al5 RF assembly
Calibrator Amplitude and Frequency Accuracy
The CAL OUTPUT amplitude is adjusted for -10.00 dBm measured directly at the front
panel CAL OUTPUT connector.
Measuring receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8902A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8482A
Power sensor
Adapters
Type N (f) to BNC (m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1250-1477
The spectrum analyzer should be allowed to warm up for at least 30 minutes
before performing this adjustment.
1. Place the spectrum analyzer in the service position shown in Figure 2-18. Prop the Al4
frequency control board assembly in the service position.
2. Zero and calibrate the HP 8902A/HP 8482A combination in log display mode. Enter the
power sensor 300 MHz cal factor into the HP 8902A.
3. Connect the HP 8482A through an adapter directly to the spectrum analyzer CAL
OUTPUT connector.
4. Adjust A15R561 CAL AMPTD for a -10.00 dBm reading on the HP 8902A display.
Figure 2-18. Calibrator Amplitude Adjustment Setup
10. Calibrator Amplitude Adjustment
BOARD
PROP
Adjustment Procedures 2-47
S K 1 1 3
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