Fluke CableAnalyzer DSP-4100, Руководство пользователя

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Autotest
Autotest Results for Twisted Pair Cabling
3
3-13
Pressing
# View Plot
produces the attenuation plot screen. Figure 3-5
describes an example of the screen.
5
1
2
6
4
3
oy10c.eps
1
The cable pair relevant to the plot.
2
Frequency range in MHz. Use
U D
to switch between frequency scales. To switch to the
next lowest or highest range, use
L R
to move the cursor beyond the left or right side of
the plot.
3
The attenuation level, frequency, and margin at the cursor’s position. Margin is the
difference between the limit and the measured value. If you move the cursor beyond the
highest test frequency specified by the selected test standard, the readout shows the
attenuation value at the cursor’s position.
4
The measured attenuation for the cable pair.
5
The attenuation limits, as defined by the selected test standard. A crosshair is shown if the
limit is defined for only one frequency.
6
Decibels of attenuation.
Figure 3-5. The Attenuation Plot Screen