User Manual

GDS-1000A-U Series User Manual
98
line
1~263 for NTSC, 1~313 for PAL/SECAM
Pulse condition
(pulse trigger)
Sets the pulse width (20ns ~ 10s) and the triggering
condition.
>
Longer than
=
Equal to
<
Shorter than ≠ Not equal to
Trigger slope
Triggers on the rising edge.
Triggers on the falling edge.
Trigger coupling AC
Triggers only on AC component.
DC
Triggers on AC+DC component.
Frequency
rejection
LF
Puts a high-pass filter and rejects the
frequency below 50kHz.
HF
Puts a low-pass filter and rejects the
frequency above 50kHz.
Noise rejection
Rejects noise signals.
Trigger level
L
EVE L
Using the trigger level knob moves the
trigger point up or down.
Configuring Holdoff
Background
The Holdoff function defines the waiting period
before GDS-1000A-U starts triggering again after
the trigger point. The holdoff function is especially
useful for waveforms with two or more repetitive
frequencies or periods that can be triggered.
Panel operation
1. Press the Trigger menu key
twice.
MENU MENU
2. To set the Holdoff time, use
the Variable knob. The
resolution depends on the
horizontal scale.
Range
40ns~2.5s