Measure Dtf - Agilent Technologies FieldFox N9923A Quick Reference Manual

Measure Distance to Fault (CAT Mode-Opt 305)
Required Equipment:
 LOAD with correct connector type and gender to
terminate the end of the DUT.
 Known length and cable type or Cable Loss
(dB/Meter) and velocity factor of the DUT.
 Optional phase stable jumper cable or adapter to
connect the beginning of the DUT to the FieldFox.
1. Connect any necessary jumper cable or adapter to
the FieldFox Port 1 connector.
2. Press Preset then
3. Then Mode then
Distance to Fault
4. Then
5. Press Freq/Dist then
length of the DUT.
6. If a diplexer or other filter is in the measurement
path, press Freq/Dist and manually type the
Start
and
Meas Setup then select
[Lowpass]
7. Press Cal 5 and follow the Cal prompts.
8. Disconnect any components or antenna that should
NOT be measured and connect a LOAD at the end
of the DUT.
9. Press Meas Setup 4 then
Specifications.
10. Either press
Velocity Factor
11. Connect the start end of the DUT to the FieldFox
Port 1. The DTF measurement is displayed.
Preset
CAT
Max Stop
frequencies. Otherwise, press
Recall Coax Cable
Cable Loss
and
Stop Distance
Frequency Mode
DTF Cable
or enter the
7
and enter the
of the DUT.
Min