10 MHz Reference Frequency Accuracy Performance Test

This test applies only to analyzers that are not equipped with the high stability frequency reference, Option 1D5. If your analyzer has Option 1D5, perform 10 MHz High Stability Frequency Reference Accuracy, (Opt 1D5) instead.

The settability is measured by changing the setting of the digital-to-analog converter (DAC) which controls the frequency of the timebase. The frequency difference per DAC step is calculated and compared to the specification.

Related specification:

Frequency Reference: Settability

Related adjustment:

10 MHz Reference Adjustment

Required Equipment

Equipment

Recommended Model

For ESA Models

Frequency Counter 1

53230A

All

Frequency Standard 1

Microsemi 5071A-C002

All

Cable, BNC, 2 required

8120-2582

All

Connection Setup

Additional Information

10 MHz Reference Output Accuracy Error

The 10 MHz reference settability is calculated using the following equation:

     

     

    		 Y = (Fnom - Fnom±1) / 2

     

    		 where

     

    		Fnom is the frequency measured DAC set to nominal.

     

    		Fnom±1 is the frequency measured with DAC set to nominal plus or minus one.