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Chapter 3 109
PSA Functional Tests
Frequency Readout Accuracy
PSA Functional Tests
Frequency Readout Accuracy
Test Limits
Frequency Readout Accuracy is equivalent to the following equation:
± (0.25% x span + 5% X RBW + 2 Hz + 0.5 x horizontal resolution)
NOTE See results table for actual values.
Test Description
The frequency readout accuracy is measured in several spans and center frequencies that
allow both internal analyzer synthesizer modes and prefilter bandwidths to be tested.
Frequency reference error is eliminated by using the same frequency standard for the
analyzer and signal source.
Figure 3-4. Frequency Readout Accuracy Test Setup
Item
Critical Specification
(for this test)
Recommended
Agilent Model
Adapter Type-N(m), to 3.5 mm(f) 1250-1744
Adapter 3.5 mm(f) to 3.5 mm(f) 5061-5311
Cable APC 3.5 mm, 1 meter 8120-4921
Cable BNC, 120 cm 10503A
Synthesized
Sweeper
Frequency: Capable of 2 GHz (must have external
reference input)
83630B