Agilent Technologies ESA-E Series User Manual page 24

Making Measurements
Making Cable Fault Measurements
Figure 3-1 Calibrating for Cable Fault Location
The distance-to-fault accessory kit, Option B7K, has all the 50 ohm accessories
NOTE
required to make these measurements.
accessories required for 50 ohm and 75 ohm measurements.
2. Configure the spectrum analyzer for the appropriate cable type.
18
* 50 ohm only. The 6 dB attenuators may be used to improve impedance matching.
** 75 ohm only.
a. Press the
Cable Type
Screen as shown in Figure
b. Page through available cable types using the
c. Press the Select menu key to select the appropriate cable type.
d. If you don't see your particular cable type listed, you can modify one of the
"Custom" cables at the end of the cable type list. You will need to know the
Velocity Factor and Cable Loss per Metre data for your
cable:
1. Select one of the unused Custom cables.
2. Press
Vel Factor
3. Key in the value
4. Press
Enter
5. Press Cable Loss /m
6. Key in the value (dB).
7. Press Enter .
8. Press
Store Table
Table 3-1 on page 17
menu key, and observe the Cable Type Selection
3-2.
Tab
to save the changes.
lists the cables and
, , or keys.
RPG Step
Chapter 3