Technical data

Chapter 10 289
Distance to Fault
Measuring Distance to Fault
Distance to Fault
14 For Custom Cables only
(Cable Type =
Cust),
you must specify the
characteristics of your
cable. Use [Cable
Atten] and [Prop Vel] to
do this.
Specify your custom cable’s attenuation [Cable
Atten.] in dB per 100 m (or in dB per 100 ft.)
Specify also your custom cable’s propagation
velocity [Prop Vel], measured as a percentage of
the speed of light in a vacuum.
The values you enter here will be used for the
measurement, and will be displayed at the upper
left of the display.
Most cable manufacturers provide a table showing
attenuation versus frequency for each type of cable.
Remember that attenuation varies with frequency,
so select an attenuation value that corresponds as
closely as possible to the center of the frequency
range you are using.
15 [Freq/Dist/ Calibrate]
16 [Calibrate] Follow the Calibration Wizard. If you have
previously calibrated using a
Frequency Range of
Auto, and your frequency range lies within the
previously calibrated frequency range, your
analyzer will already be calibrated and you will not
need to recalibrate.
17 Connect the antenna
feedline and antenna.
Connect the antenna feedline to the RF Out/SWR
port.
Step Notes