6-16
IM 701510-01E
6.10 Setting the Trigger Coupling and HF Rejection
1.
Press the
COUPLING key
to display the trigger coupling selection
menu.
2.
Press the soft key corresponding to the desired trigger coupling.
3.
In case you want to set HF rejection, press the “
ON
” soft key at the
“
HF-Rej
” field.
Explanation
Selecting the Trigger coupling
The following types are available.
AC
The trigger source signal is used as the trigger source after the DC content has been
removed. The trigger level becomes 0 V.
DC
The trigger source signal is used as the trigger source without any processing. The
trigger level becomes the center of the amplitude of the trigger source.
The default value is “AC”.
The trigger coupling setting applies to all channels simultaneously.
Turning HF rejection ON/OFF
Set to “ON” if you want to use the trigger source signal as the trigger source after the high
frequency content (frequency contents exceeding approximately 15 kHz) has been removed.
Points to note when setting the trigger coupling and HF rejection
These settings will be ignored if “EXT” or “LINE” is selected as the trigger source or “TV”
is selected as the trigger type. However, the setting made for EXT will be valid (for
DL1520/DL1520L).
Keys and Procedure
COUPLING key
Soft keys
