Filter
Top Products
Appendix D Performance Tests
Complete Performance Tests
Operating and Programming Guide D-21
11 Again, allow the counter to accumulate 100 samples of time interval.
12 Note the largest deviation (greater or less) from exactly 1 second.
This the worst-case 1 PPS leading edge jitter.
13 Record the results of 1 PPS Jitter on Line 2 of Test 1 of the
Performance Test Record.
14 Wait 24 hours to complete the Frequency Accuracy test.
15 On the terminal or computer, enter the following command:
:DIAG:LOG:READ:ALL? and press the Enter (or Return) key.
Observe the messages (if any) that appear and verify that none of the
messages indicate that the 58503B/59551A has entered holdover mode.
If it has, the entire test must be re-started from step 2 above.
16 Repeat steps 2 through 8 above after the 24-hour period.
17 Compute the Frequency Accuracy using the following formula:
Where,
t1 is the average time interval first measured
t2 is the average time interval last measured
∆t is the time between measurements (86,400 seconds = 24 hours)
18 Record the results of Frequency Accuracy in Line 1 of Test 1 of the
Performance Test Record.
t1 t2–()ondssec
t ondssec∆
---------------------------------------------- Accuracy (unitless)=