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

Equipment Required

Generator Level

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 11722A calibration 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.

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Agilent Technologies S GSM Understanding the Tests, Test 01 Signal Equipment Required Generator Level, Theory of the Test