User`s guide

Chapter 3 77
Screen Reference
AUTOMATIC TEST
3. Screen Reference
Pass/Fail: Phase Error/Frequency Error
This function measures and analyzes the rms and peak phase errors and frequency
error over the active part of the timeslots between 0 to 147 bits. The test data for
RMS, Peak and Marker Phase errors, and Frequency error are displayed, and the
graphic display with phase versus timeslots (in bits) is shown. If the actual data
exceeds the limits in the graph, one (or two for two fails) white triangle marker
indicates the failed position at the top of the graph frame. Any data indicating a
failure is highlighted.
Figure 3-18 Passed: Phase Error/Frequency Error Screen
Softkey Menu
o Print: Allows you to print a hardcopy of a graphic image from the screen.
o Marker Coars/Fine: Toggles the marker control between Coars
for coarse
and Fine
to move the marker with 10 dots (coarse) or 1 dot (fine) resolution.
The marker readouts for the phase error magnitude and timeslot (in bits) are
available at any point of the measured trace.
o Return: Displays the Pass/Fail screen.