UNI-T UTS1000 Series Operating Manual page 54

3.3.8.49 [Lower limit line ]
Enable or disable lower limit line. When region
measurement is on, lower limit line defaults to on.
3.3.8.50 [Edit ]
It is used to edit upper limit line and lower limit line. Set
proper control lines according to specific test results.
3.3.8.51 [Frequency offset]
As for actual measurement, superimpose certain frequency
to whole edited region, to make it move left or right, easy
for measurement, which doesn't influence the setting of
frequency and frequency marker of spectrum analyzer.
3.3.8.52 [Amplitude offset]
As for actual measurement, superimpose certain amplitude
to whole edited region, to make it move upward or
downward, easy for measurement, which doesn't influence
the setting of amplitude of spectrum analyzer.
3.3.8.53 [Edit of upper line ]
Edit of upper line is used to edit control line above trace
according to specific condition of trace.
3.3.8.54 [Edit of lower line ]
Edit of lower line is used to edit control line above trace
according to specific condition of trace.
3.3.9 MARKER
Frequency marker is a diamond marker, used to mark points
on trace. Amplitude, frequency or sweep time point of points
on trace can be read out by marker.
Notes:
5 pairs of markers at most can be displayed at the same time.
However, only one pair of markers or one marker is in
activated state every time. Under marker menu, it is able to
input frequency and view readings of different points on
trace by number keys and direction keys.
3.3.9.1 [Frequency marker 1 2 3 4 5]
Activate signal frequency marker, default to selecting
marker 1. Move frequency marker in the center of trace. If
frequency marker difference has already been activated,
this soft key will be menu under [Frequency marker
difference] function.
If one frequency marker already exists, this command will
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