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Measuring the propagation delay between two ports of the Option 133 Converter is done using the Paragon-neo 1PPS Time Error Measurement function. Connect the two ports that you want to measure the propagation between to the relevant neo 1PPS reference port (RJ45 or BNC) and the relevant 1PPS measurement port (BNC or RJ45).
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The example screenshots below show the Paragon-neo 1PPS Time Error Measurement application with appropriate delay compensation, and the Time Error results in CAT. The cables used in this example were 0.64m length at 5.1ns/m gives a Delay Compensation of 3.26ns. The red arrows highlight the relevant status indicators. CAT show the delay through this example Option 133 Converter port3 to port 4 is 18.6ns
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For future use, ensure that the measured Option 133 delay compensation value is included in the cable delay compensation value when making measurements with it in the signal path e.g. for the above example the cable del value would be the actual cable delays + 18.6ns.