Analog IF Input Detector Adjustment

The adjustment determines the power detected by the A8 Analog IF (AIF) input power detector under known conditions. The detector gives a DC level which corresponds to this power. An ADC converts this DC level to a digital value which is then stored in the A8 EEPROM.

The 321.4 MHz calibrator on the A10 Third Converter is used to provide a stable -7 dBm, 21.4 MHz signal to the A8 input. A power meter is used to measure this signal at A10J5 to accurately set its power level.

This adjustment should be performed after replacing the A8 assembly.

This adjustment saves an output file which lists the corrections that were stored in the instrument. The output file is saved at this location:

<drive>:\Program Files (x86)\Agilent TME\PSA\Output\<Model_Serial#>

Required Test Equipment

Test Equipment

Model Number

Power Meter

N1914B

Power Sensor

N8481A 

Type-N (f) to BNC (m) adapter

1250-1477
1250-0077

SMB (f) to BNC (f) adapter

1250-1236

Connection Setup

Power Meter Calibration

Analog IF Input Detector Adjustment Setup