Frequency Accuracy Test

(N9912A)

This test measures the accuracy of internal time base by measuring the frequency at RF OUT. A 1.8 GHz low-pass filter is used to attenuate harmonics generated by the source in the FieldFox analyzer.

Be sure to enter the appropriate positive value for Frequency Accuracy (ppm) under Additional Properties for the 10 MHz frequency standard. Using the default accuracy will produce very large measurement uncertainties in the test results.

Test type:

performance

Related specification:

Frequency Reference

Related adjustment:

Frequency Accuracy

Required Test Equipment

Test Equipment

Recommended Model Number
(see main equipment list for alternative models)

Frequency Standard

Microsemi 5071A

Frequency Counter

53230A

Low Pass Filter, 1.8 GHz

0955-0491

Cable, BNC

8120-2582

Connection Setups

The following notes apply to illustrations in the FieldFox Help:

  • Only a single representative model will be shown.
  • Some illustrations may differ than those in TME.

  • For procedures that apply to multiple ports, illustrations will show the setup on only one test port.

Frequency Reference Accuracy Test Setup