Tektronix 1760 - Manual (Page 94)

Using the Menus
1760 Series Component Waveform/Vector Monitor User Manual
3-26
H If NTSC and PAL external references are configured
the same, the monitor automatically operates in the
same television standard as the
EXT REF input.
When NTSC and PAL external references are
configured differently, the monitor’s operating
standard is determined by the standard of the dis-
played video instead of the
EXT REF input. Once the
operating standard is determined, the monitor
immediately switches to the appropriate input for
reference timing.
Gain Menu
H Any one of three calibrated gain ratios can be selected:
X1, X5, or X10. Variable gain is also available, indepen-
dent of the other gain settings. When variable gain is on,
the left bezel control adjusts signal gain.
H In Lightning mode, the three calibrated gain ratios are
available, as well as two independent variable gain
settings.
VAR V GAIN adjusts the gain of the vertical
portion of the signal and VAR H GAIN adjusts the gain of
the horizontal portion.
H Audio or Time Code gain is set when
AUDIO or TIME
CODE display is selected. Gain choices are 0 dBu, 4
dBu, 8 dBu, or 12 dBu.
H When variable gain is turned off, the instrument returns
to the calibrated gain setting. Operator adjustments
made with variable gain will be restored when variable
gain is selected again.