GW Instek GDS-2000 series Uer manual - Manual (Page 109)

CONFIGURATION
109
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 signal.
Setup Holdoff and Auto level
Background Holdoff function defines the waiting period before
GDS-2000 starts triggering again after a trigger
point. Auto level function automatically adjusts
the trigger level to the center amplitude of the
waveform.
Panel operation 1. Press the Trigger menu key
twice.
MENU MENU
2. To set the Holdoff time,
press F1 (Holdoff) and use
the Variable knob. The
resolution depends on the
horizontal scale.
Range 40ns~2.5s
Pressing F2 (Set to
Minimum) sets the Holdoff
time to the minimum, 40ns.
Note: The holdoff function is automatically
disabled when the waveform update mode is
in Roll or Scan mode (page97).
3. To turn Auto Level On/Off,
press F5 (Auto Level).