Frequency Span Accuracy Performance Test

Frequency Span Accuracy is a measure of the CXA-m's sweep linearity. The test is done in several spans to check all modes of the synthesizer circuitry.

The generator signal is placed at the first graticule in the span and the frequency is read. Then the generator signal is placed at the ninth graticule of the span and the frequency is measured. The frequency difference is compared to 0.80 * Span setting. Since the source is locked to the CXA-m reference, the source frequency error is zero.

Required Test Equipment

Test Equipment

Recommended Model Number1

Microwave signal generator #1

PSG models
(see main equipment list)

Cable, BNC (m) to SMB (f)

8121-2063

Coaxial cable, 3.5 mm (m) to 3.5 mm (m)

11500E

Adapter, 3.5 mm (f) to 3.5 mm (f)

  • For 3.5 mm source

83059B

Adapter, 2.4 mm (f) to 3.5 mm (f)

  • For 2.4 mm source

11901B
  1. Refer to the main equipment list for a list of alternative models (if available).

Connection Setup