DTX Series CableAnalyzer
Technical Reference Handbook
3-30
Figure 3-21. ELFEXT Plot
amd13f.eps
A
The location of the ELFEXT results. Press J to switch
between the tester and smart remote.
B
The overall ELFEXT result. “PASS*/FAIL* Results” on page
3-12 describes results marked with an asterisk.
C
Horizontal and vertical magnification levels for the plot. To
change the magnification, press
KChange To Zoom; then
use
BC or AD to zoom horizontally or vertically.
D
Measured ELFEXT for the cable pairs. Higher ELFEXT means
better cabling performance.
E
The limit line (in red) for ELFEXT. The higher the
measurements rise above the limit line, the better the cabling
performance. Press L to see plots of individual pairs.
F
The cursor and its location on the frequency scale. When you
first view the plot, the cursor is placed at the worst margin. Use
BC to move the cursor (if the plot is in zoom mode, press
KChange To Cursor first).
G
The measured ELFEXT and margin at the cursor’s position.
Margin is the difference between the measured value and the
limit. Margin is negative if the pair failed.
H
The horizontal scale is the frequency range in megahertz. The
vertical scale is the ELFEXT range in decibels.
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