Tv Trigger Mode - HP 54501A Operation Reference

TV
Trigger
Mode
T V TRIGGER
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Standard Select Key
Source Select Key
IV
The Trigger menu enables the HP 5450lA to trigger on clamped
signals. The two most common
the standard used in the United States, 50 Hzl625 lines
used in most European countries. This trigger menu also allows for user
IV
defined signals that may be used in other parts of the world.
To move the highlighted inverse video window within a field you must
press the selection key and to change the value displayed in the window
you must rotate the knob.
Pay close attention to the movement of the highlighted window;
it moves to various options within the field.
The source key allows you to choose between the NTSC standard
used in the United States with a
Hz
standard of 50 and 625 lines per frame used in most
Europe. The third option allows for user defined ranges of the
To make the desired selection:
•
Press the selection key and select the standard by rotating the knob.
is
The active field
To select the trigger channel to be used as a source,
•
Press the selection key and move the highlighted field, rotate the knob
until the desired channel
IV
standards;
Note
60
Hz and 525 lines per frame, the
highlighted in inverse video.
is
displayed.
60
Hz/525 lines or NTSC
is
the standard
tv
countries in
tv
signal.
Trigger Menu
tv
is
signal
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