Count Accuracy Performance Test

This test verifies the count accuracy of the built-in frequency counter. To perform marker count, the EMI receiver pauses between sweeps, tunes the center frequency to the marker frequency, sets the span to 0 Hz, and counts the frequency of the signal long enough to achieve a valid reading.

A synthesized sweeper is used to supply signals of known frequencies. The 10 MHz reference for the sweeper is supplied by the DUT.  

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Required Test Equipment

Test Equipment

Model Number1

Microwave Signal Generator #1

PSG Models
(see equipment list)

Cable, BNC

8120-1840 

Cable, 3.5 mm coaxial

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
  • For Option 544

11901B

Adapter, Type-N (m) to 3.5 mm (f)

1250-1744
  1. Refer to the main Required Equipment table for a list of alternative models.

Connection Setups

Count Accuracy Test Setup