Wander >Wander
11.4.1.1 Test Setup
Setup
1. Measurement Clock Reference or Reference Clock Source offers a selection of external or internal (optional)
frequency references. Internal or built-in reference options could be “Atomic 10 MHz” or “Atomic 1PPS”,
disciplined by GPS or free running.
2. Clock Port indicates the connector in which the traceable external clock reference source shall be connected.
(Avoid using rigid BNC-to-SMA adapters to prevent any stress on the test set’s connector. Flexible adapters or
cables are recommended.)
3. External Clock Type allows users to select from a list of supported clock signals (e.g. 1.544 MHz, 2.048 MHz,
1544 Mbps, 10 MHz, 2.048 Mbps, 1PPS)
4. Test Mode lets user select between Manual start/stop and Timed measurements. If Timed is selected, users can
set the length of the test in seconds, minutes, hours or days. Once the selected time has elapsed the test
automatically stops.
5. Save TIE can be turned ON to write all wander measurements to a FAT32 USB Memory stick in real time, to be
analyzed later on.
6. The Sampling Rate (samples per second) can be set to 1/s, 5/s, 10/s or 30/s, depending on the application.
7. File Name identifies the new folder in which all configuration and measurement data will be stored. This folder
will be created in the root of the memory stick.
8. Tap on the
Start
button to initiate the measurements and data logging.
9. Tap on the
Stop
button to force the measurement and data logging to stop. This will also stop a Timed test, even
if the total time has not finished yet.
10. After stopping the test, and if the built-in MTIE/TDEV option is enabled, users can also tap on the Analysis
button to view the TIE graph and perform the MTIE/TDE analysis on the recorded TIE data. Refer to the
following sections for more details.
11.4.1.2 Test Result
Numerical counters are provided to let users know the status of the test, with a basic summary of the TIE information.
1.
Current TIE:
Shows the current time interval error measurement.
RXT-6200_RXT6000e_Module_Manual
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