Agilent Technologies 53147A Assembly Level Service Manual page 68

Chapter 2 Service
Calibration Procedures
2 Connect the free end of the Agilent 11730A Power Sensor Cable to the
input connector on the Agilent E4418B Power Meter.
3 Connect the Agilent 8481A Power Sensor to the power reference output
connector of the Agilent E4418B Power Meter.
4 Zero the E4418B Power Meter.
5 Calibrate the E4418B Power Meter.
6 Disconnect the Agilent 8481A Power Sensor from the Agilent E4418B
Power Meter, and immediately connect it to the Power OUTPUT connector
on the Agilent 53147A/48A/49A (see Figure 2-5).
Agilent
53147A/48A/49A
Agilent
Figure 2-5. Power Meter Reference Level Test Setup
7 Use a non-metallic, slot-type adjustment tool to adjust the setting of R98
on the main circuit board (see Figure 2-3) until the power level is as close
to 1.000 mW as possible (the level must be between 0.988 mW and
1.012 mW). Turn the adjustment tool counter-clockwise to increase the
power level or clockwise to decrease the power level.
2-14
Output connector (with Agilent 8481A
Power Sensor Attached)
Agilent E4418B
Power Meter
Assembly Level Service Guide
Input