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Verifying Performance
Understanding the Tests
Understanding the Tests
This section describes the theory of each performance test, lists the equipment
needed for the test, and provides some problem solving information.
Test 01: Signal
Generator Level
Equipment Required
Measuring Receiver HP/Agilent 8902A
Sensor Module HP/Agilent 11722A
Theory of the Test
The UUT is set to generate CW signals at various levels and frequencies. The HP/
Agilent 8902A/11722A is used as a power meter to measure high level signals and
the HP/Agilent 8902A tuned RF level function is used to measure low level signals.
Things To Check In Case Of Problems
• The HP/Agilent 8902A/11722A must be calibrated and zeroed for accurate
measurement results. The HP/Agilent 11722Acalibration factors must be entered
into the HP/Agilent 8902A.
• Low level signals from the Agilent 8922M/S must be very stable to be measured
by the tuned RF level function of the HP/Agilent 8902A. The instrument
timebases should be locked together. Also, if the Agilent 8922 source has
unusually high residual FM it may cause the low level measurements to fail
because the HP/Agilent 8902A cannot lock onto the signal.
• Mismatch uncertainty causes a high level of uncertainty in this measurement.