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Measurements
4–2
1780R-Series Operator’s Manual
measurements, touch the <GO TO DIFF PHASE> and <GO TO
DIFF GAIN> areas of the screen to alternate between those two
measurement modes.
To perform additional measurements, push the MEASURE button
and touch the next desired measurement.
Differential Phase Measurement
Enter DIFF PHASE Mode
Push the MEASURE button to enable the Measurement menu,
shown in Figure 4–1.
Touch <DIFF PHASE> on the screen.
The DIFF PHASE menu is displayed on the left CRT, with
demodulator output displayed on the right CRT, as shown in
Figure 4–2.
The instrument is now configured as specified in Table 4–1.
Large knob function is phase shift, and PHASE SHIFT LED lights.
Exit DIFF PHASE Mode
To exit DIFF PHASE mode, push the MEASURE button again. All
instrument settings return to previous state.
To move from DIFF PHASE mode to DIFF GAIN, touch the <GO
TO DIFF GAIN> area of the screen.
Horizontal positions, Vertical positions, and gain settings defined
while in DIFF PHASE mode will be stored when exiting, and
reinstated when this mode is selected again.
DIFF PHASE Menu Selections
NOTE. While operating in Line Select mode, noise reduction operates
only with full field test signals.
Measurements
4–2
1780R-Series Operator’s Manual
measurements, touch the <GO TO DIFF PHASE> and <GO TO
DIFF GAIN> areas of the screen to alternate between those two
measurement modes.
To perform additional measurements, push the MEASURE button
and touch the next desired measurement.
Differential Phase Measurement
Enter DIFF PHASE Mode
Push the MEASURE button to enable the Measurement menu,
shown in Figure 4–1.
Touch <DIFF PHASE> on the screen.
The DIFF PHASE menu is displayed on the left CRT, with
demodulator output displayed on the right CRT, as shown in
Figure 4–2.
The instrument is now configured as specified in Table 4–1.
Large knob function is phase shift, and PHASE SHIFT LED lights.
Exit DIFF PHASE Mode
To exit DIFF PHASE mode, push the MEASURE button again. All
instrument settings return to previous state.
To move from DIFF PHASE mode to DIFF GAIN, touch the <GO
TO DIFF GAIN> area of the screen.
Horizontal positions, Vertical positions, and gain settings defined
while in DIFF PHASE mode will be stored when exiting, and
reinstated when this mode is selected again.
DIFF PHASE Menu Selections
NOTE. While operating in Line Select mode, noise reduction operates
only with full field test signals.