Fluke CableAnalyzer DSP-4000 Series, Руководство пользователя

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Autotest
Autotest Results for Twisted Pair Cable
3
3-21
Pressing
# View Plot
produces the RL plot screen. Figure 3-8 describes an
example of the screen.
5
2
1
6
4
3
oy13c.eps
1
The cable pair relevant to the plot.
2
Frequency range in MHz of the RL test. Use
U D
to change the frequency scale.
3
The RL level, frequency, and margin at the cursor’s position. The cursor aligns to the
frequency that produced the worst margin. Margin is the difference between the limit and
measured values plotted at the cursor’s position. Use
L R
to move the cursor left or right. If
you move the cursor beyond the highest test frequency specified by the selected test
standard, the readout shows the RL value at the cursor’s position.
4
The limits for RL, as defined by the selected test standard.
5
Decibels of RL for the cable pair.
6
The measured RL for the cable pair.
Figure 3-8. The RL Plot Screen