Agilent Technologies 8719ES User Manual page 78

Making Measurements
Measuring Amplifiers
Figure 1-51 High Power Test Setup (Step 3)
26.Make any other desired high power measurements.
Ratio measurements such as gain will be correctly displayed. However, the displayed
absolute power levels on the analyzer will not be correct. To correctly interpret power
levels, the gain of the booster amplifier and the attenuator settings must be taken into
consideration.
NOTE If no calibration has been performed or if the instrument is in an uncalibrated
state, the following must be taken in consideration when interpreting the
measured data:
• The value of attenuation added to sampler A and B.
• The R channel reference level supplied from the coupled arm of the 20 dB
coupler.
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