160 Chapter2
Making Adjustments
27. Checking the Absolute Amplitude Accuracy for Option 051
27. Checking the Absolute Amplitude
Accuracy for Option 051
This adjustment applies to:
All 8590 E-Series spectrum analyzers, Option 051
To measure the absolute amplitude accuracy of the analyzer in the
frequency ranges 810 MHz to 956 MHz and 1429 MHz to 1501 MHz, a
signal from a synthesized sweeper is output to both the analyzer and a
measurement receiver. To determine the absolute amplitude accuracy:
1. The amplitude of the sweeper's signal is adjusted until the analyzer
marker reads out a known amplitude.
2. The amplitude of the sweeper's signal is measured by the measuring
receiver. (The measurement receiver is used as a power meter.)
3. The difference between the marker readout and the measuring
receiver's measurement is determined. This difference is the
absolute amplitude accuracy.
Equipment required
Synthesized sweeper
Measurement receiver
Power splitter
Power sensor, 810 MHz to 1501 MHz
Adapter, Type N (f) to APC 3.5 (m)
Adapter, APC 3.5 (f) to APC 3.5 (f)
Adapter, Type N (m) to Type N (m)
Cable, Type N, 183 cm (72 in)
Additional Equipment for Option 026
Adapter, Type N (f) to APC-3.5 (f)
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