2. 10 MHz Precision Frequency Reference Output Accuracy, HP 8590 EM-Series Option 004

11.Calculate the 5 Minute Warmup Error by subtracting Reading 3 from Reading 1 and dividing the result by 10 MHz.

5 Minute Warmup Error = (Reading 1 0 Reading 3) / (10.0 2 106 )

12.Record the results as TR Entry 1 of the performance veri￿cation test record.

13.Calculate the 30 Minute Warmup Error by subtracting Reading 3 from Reading 2 and dividing the result by 10 MHz.

30 Minute Warmup Error = (Reading 2 0 Reading 3) / (10.0 2 106 )

14.Record the results as TR Entry 2 of the performance veri￿cation test record.

2-8 Performance Veri￿cation Tests