FX180X Channel Checker e-Manual, D07-00-128P-RevA00
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4.2.2 A/B Markers
Use the stylus provided with the test set and select A or B markers on the touchscreen to drag
the marker left or right to the point of interest. Alternatively, tap the left/right arrows whose
color matches the marker. You can also tap next to the left or right side of the marker to move
one display pixel. Channel details can be viewed on the touchscreen or the marker detail box.
The span power between the two markers is displayed also.
A/B Markers Control
4.2.3 Active Channel Threshold
Use the stylus provided with the test set to select the gold color horizontal line to move up and
down or tap the gold up/down arrows. You can also tap next just above or below the gold line
to move the threshold level. Any channel below the line will not appear in the results table.
4.2.4 Pass/Fail Threshold
Use the stylus provided with the test set to select the red color horizontal P/F threshold to
move up and down or tap the gold up/down arrows. You can also tap next just above or below
the red line to move the level. Any channel above the red line will be displayed in green.
Channels that fall below the P/F level will appear in red in the graph.
