5
.Menu Interpretation
52
Key Points:
Changing the points may influence the sweep time which is
limited by the sample rate of the ADC (Analog to Digital
Converter). That is, the more points used, the longer the sweep
will be.
Changing the points would also influence other system
parameters, thus the instrument restarts the sweep and
measurement cycle.
You can modify this parameter using the numeric keys, knob or
direction keys.
5.11
【
Trig
】
hardkey
Key access:
Press
Shift key, then
Trig
hardkey (
5
in
numeric keypad
).
Sets the trigger mode and other associated parameters, submenu
includes [Auto Run], [Video], [External
►
].
5.11.1 [Auto Run]
Set the trigger mode to free run mode. In this mode, new sweep
starts as soon as possible after the current sweep ends.
5.11.2 [Video]
In Video mode, a trigger signal will be generated when the system
detects a video signal in which the voltage exceeds the specified
video trigger level.
Use the numeric keys, knob or direction keys to set the trigger level
in Video mode. The screen will display corresponding line Triger
Level and the value.
5.11.3 [
External ►
]
In this mode, an external signal (TTL signal) is input from the [Trig
In] connector at the top panel, of which the edge conditions should
meet with the user settings to generate trigger signals.
Press
[External ►]
to access the submenu, select [Positive Edge]
or [Negative Edge] as the trigger condition.