Bird Technologies SA-6000EX - Manual (Page 85)

Fault Location Mode
69
1. Each connector or jumper will show up as a spike. If it is larger
than the typical value, check the connector for damage.
2. Spikes where there are no components represent faults. Note the
distance and check the line at that point for damage.
3. The largest spike is usually due to the antenna. Typically the
trace after the antenna can be ignored.
4. If you have selected a cable length that is less than the total
length of the cable system, the trace might show a spike that is not
really a fault, but rather an echo from the remaining portion of the
cable that is beyond the length you chose. Such a spike is known
as an alias. To avoid aliasing, you should always set the
measurement distance to a value that is a few feet or meters
greater than the entire length of your cable system.
5. A large spike (fault) near the Site Analyzer will mask other faults
farther away. When you find a large spike near the Site Analyzer,
fix it and then repeat the Fault Location measurement.
Measurement Hold
Measurement Hold stops updating the display at the end of the cur-
rent sweep. Press the Hold key to toggle the sweep hold off and on. A
measurement is held when there is a lock icon in the indicator ball.
Measurement hold is available in Measure Match mode and Fault
Location mode.
Follow the numbered steps in Figure 33, page 69 to turn measure-
ment hold on or off.
Figure 33 Measurement Hold
Step Action
1 Press the Hold softkey to hold the measurement; press
the Run softkey to resume sweeping
2 The lock symbol indicates that the measurement is held