208 Chapter 9
Performance Verification Tests
6. Frequency Span Readout Accuracy
6. Frequency Span Readout Accuracy
For testing each frequency span, two synthesized sources are used to
provide two precisely-spaced signals. The analyzer marker functions
are used to measure this frequency difference and the marker reading
is compared to the specification.
There are no related adjustment procedures for this performance test.
Equipment Required
Synthesized sweeper
Synthesized signal generator
Power splitter
Adapter, Type-N (m) to Type-N (m)
Adapter, Type-N (f) to APC 3.5 (f)
Cable, Type-N, 152-cm (60-in) (2 required)
Cable, BNC, 122-cm (48-in)
Additional Equipment for 75 Ω Input
Pad, minimum loss
Adapter, Type-N (f), to BNC (m), 75 Ω
Procedure
Full Span Frequency Span Readout Accuracy
1. Connect the equipment as shown in Figure 9-5. Note that the power
splitter is used as a combiner. The synthesized signal generator
provides the frequency reference for the synthesized sweeper.
2. Press
Preset on the analyzer, then wait for the preset routine to
finish.
3. Press INSTRUMENT PRESET on the synthesized sweeper and set the
controls as follows:
CW, 1350 MHz
POWER LEVEL, −5 dBm
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