Giga-tronics 2508A, Operation Manual

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Performance Verification
2500A Series Operation Manual, 34172 Revision C, March 2008
5. Record the levels of the worst case harmonic, non-harmonic or spurious signals in the appropriate
columns of Datasheet 2.
6. Repeat steps 3 through 5 for the other frequencies listed in Datasheet 2 that are within the operating
range of the instrument.
4.3.2.3 RF Output Power Tests
The following procedures test output power at frequencies within each band. There are three tests: Maxi-
mum-Leveled Power, Level Accuracy, and Step Attenuator Level Accuracy.
The tests are presented in this section as manual procedures, however, for a comprehensive evaluation of
the output of the 2500A, it is recommended that an automated test system be used to perform these tests.
NOTE: When measuring the flatness and accuracy of the 2500A, consideration must be given to the
various measurement uncertainties in the test system. These include, but are not limited to,
VSWR, Cal Factor uncertainty and calibration.
4.3.2.3.1 Equipment Required
• Power Meter
• Power Sensors covering the frequency ranges being tested
• Spectrum Analyzer
4.3.2.3.2 Test Setups
Figure 4-3: Maximum-Leveled Power and Level Accuracy Tests
Power Meter
MICROWAVE
SYNTHESIZER (UUT)
RF OUT
SENSOR
IN
SENSOR
2500A Microwave Synthesizer
(Series 2500A Illiustrated)