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6.4.
Distance-To-Fault (DTF) Measurement
In S3101 Cable & Antenna Analyzer, DTF measurement has two different display formats: DTF Return Loss and DTF VSWR. For the two
same measurement processes, follow these steps to set.
1) Press
【
Meas
】
key to set the instrument measurement format as DTF Return Loss or DTF VSWR.
2) Press
【
Freq/Dist
】
key to first input the frequency range to be measured, that is start frequency and stop frequency; and then the
distance range to be measured, that is start distance and stop distance; and also select the model of cable measured or input the
cable velocity factor and cable loss.
3) Press
【
Cal
】
key to select the appropriate calibration kit to complete the calibration.
4) Connect the Analyzer to the DUT of which the terminal is antenna.
5) Press
【
Ampt
】
key and input the top-bottom coordinate figure or directly select the auto scale, to facilitate a better observation of
measurement curve.
6) Press
【
Marker
】】
key to set the appropriate marker.
7) Press
【
Save/Recall
】
key to store the current measurement results to the memory to facilitate later recall.
Figure 6-3 DTF Return Loss Measurement
