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6.
Cable & Antenna Test
S3101 Cable & Antenna Analyzer is provided with cable & antenna test function and Power Measurement function. This Chapter will
introduce the operating procedures for cable & antenna test in detail.
After power on the S3101 Cable & Antenna Analyzer, the application program enters the antenna test function by default. If the operators
have entered the power meter test function, press [MEAS MODE] menu under
【
System/Local
】
to switch to the antenna test function.
6.1.
Typical Measurement Formats
In order to understand the performance of the transmission system and solve the common problems in the transmission line system,
S3101 provide following functions for cable & antenna diagnosis
Return Loss
Return Loss is used to measure the signal reflection characteristics for antenna system, mainly for detecting the problems existing in
antenna and cable system..
Cable Loss
Cable loss is used to test the consistency or loss of energy on the transmission cable. Cable loss measurement is a method derived from
return loss measurement.
Fault Location (DTF)
Fault location test is a test method to find out the failure point of cable & antenna transmission system.
6.2.
Return Loss Measurement Setting
1) Press
【
Meas
】
key, click [Return Loss] menu to set the instrument measurement format as return loss.
2) Press
【
Freq/Dist
】
key and input the frequency range to be measured, that is start frequency and stop frequency.
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 (in return loss measurement, DUT shall connect the load).
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
【
Limit
】
key to set a appropriate limit line.
8) Press
【
Save/Recall
】
key to store the current measurement results to the memory to facilitate later recall.
