Interpreting a cable loss measurement – Bird Technologies SK-4000-TC-Manual User Manual
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11. Place a marker (mark 1) at the minimum loss point within the frequency
band on the trace. See “Makers” on page 24.
12. Place a marker (mark 2) at the maximum loss point within the frequency
band on the trace. See “Makers” on page 24.
13. Save and label the trace, if appropriate. See “Save Operation” on page
Interpreting a Cable Loss Measurement
The graph below shows a typical cable loss measurement. Note that the scale is
greatly reduced to show the cable’s variation across frequency.
Figure
10
Cable Loss Measurement Screen
Min. Loss
Max. Loss
1.
Take the average of M1 and M2.
Note:
This is the average cable loss across the frequency band.
2.
Compare the loss with the manufacturer’s specified loss for a cable of this
length.
Note:
If they do not correspond, retake the measurement, then
check the cable for problems.