Select the appropriate RANGE & PVF.
Set the AMP to A1 (0 db) on the LCD.
Ensure that the LH cursor is set to the start of the transmitted pulse or a particular pulse if an
interfeature measurement is required.
Increase the AMP control until the desired reflection is obtained.
Move the RH cursor to coincide with the start of the reflected pulse.
Check the distance reading to confirm the location - note the distance.
Press dBRL and the Return Loss in dB will be calculated and displayed on the LCD together
with the corresponding reflection co-efficient.
The result is “Measured Return Loss” which requires correction for Pulse Attenuation.
Press RS232 key to print results.
Note: this option is not displayed on screen but is available.
Ensure printer lead is plugged into the instrument and printer and that the printer is ready to
print (see section 9).
Press key 8 to return to normal operation.
Radiodetection Ltd. 00901209-6
T631 OPERATING MANUAL
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