Power Meter Calibration - HP 8753E User Manual

Power Meter Calibration

Mixer transmission measurements are generally configured as follows:
measured output power (watts) /set input power (Watts)
OR
measured output power (d&n) - set input power (dBm)
For this reason, the set input power must be accurately controlled in order to ensure
measurement accuracy.
The amplitude variation of the analyzer is specified at f 1 dB over any given source frequency.
This may give a maximum 2 dB error for a mixer transmission test setup: Al dR for the source
over the IF range during measurement and fl dB over the RF range during measurement.
Higher measurement accuracy may be obtained through the use of power meter calibration.
You can use power meter calibration to correct for power offsets, losses, and flatness variations
occurring between the analyzer source and the input to the mixer under test.
3-6 Making Mixer Measurements