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Operating Instructions
1780R-Series Operator’s Manual
3–5
Figure 3–2: Line Select Menu Screen with <1 OF 8> Fields selected
For software versions 1.13 and up: A dual Line Select mode is
available for making ICPM measurements when in Line Select. It is
described in Section 4, under ICPM Measurement.
Phase Shift
This switch enables precision phase shift measurements. Phase
readout appears in the upper left-hand corner of the vectorscope
CRT.
This readout changes as the phase is shifted, indicating the degrees
of change since the phase reference was set.
Reference Set
This switch is used in Phase Shift mode, to store displayed phase as a
reference and reset the readout to 0.00; in Voltage Cursor mode with
<RELATIVE> selected, to store the displayed voltage as a reference
and reset the readout to 100%; and in Line Select mode to access the
vertical interval (line 19).
Operating Instructions
1780R-Series Operator’s Manual
3–5
Figure 3–2: Line Select Menu Screen with <1 OF 8> Fields selected
For software versions 1.13 and up: A dual Line Select mode is
available for making ICPM measurements when in Line Select. It is
described in Section 4, under ICPM Measurement.
Phase Shift
This switch enables precision phase shift measurements. Phase
readout appears in the upper left-hand corner of the vectorscope
CRT.
This readout changes as the phase is shifted, indicating the degrees
of change since the phase reference was set.
Reference Set
This switch is used in Phase Shift mode, to store displayed phase as a
reference and reset the readout to 0.00; in Voltage Cursor mode with
<RELATIVE> selected, to store the displayed voltage as a reference
and reset the readout to 100%; and in Line Select mode to access the
vertical interval (line 19).