Procedure 4. Power Level Calibration; Power Level Calibration - Agilent Technologies 8510XF Service Quick Reference Manual

Procedure 4.
Power Level
Calibration
Figure 3-3
Making 8510XF Adjustments
Power level calibration insures leveled power at ports 1 and 2. To level the
power, we sense the IF signal which correlates to RF level. Since the
translation function is frequency dependent, we need to measure the
translation function using the conversion loss calibration procedure. The
power level calibration is accomplished using IF leveling as shown in the
following circuit.
8510XF level control
3-6 8510XF Service Quick Reference Guide