Good Will Instrument GDS-3000A Series, Руководство пользователя

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ADVANCED CONFIGURATION
159
4. Press Source from the lower menu.
Use the side menu to select a source.
Range
Channel 1~4 (Alternate On/Off),
EXT (Ext Probe: Volt/Current,
Attenuation: 1mX~1kX and AC
Line.
5. Press Coupling from the bottom
bezel menu to select the trigger
coupling or frequency filter
settings.
Choose the coupling from the side menu.
Range
DC, AC, HF Reject, LF Reject
6. Toggle Noise Rejection On or Off
from the Coupling side menu.
Range
On, Off
7. Press Trigger When from the lower
menu.
Then use the side menu to select trigger
conditions.
Condition
Stays High, Stays Low, Either
8. Press Level from the lower bezel to
set the trigger level.
9. Set the level using the side menu.
Analog
channel
Range
Set to TTL 1.4V
Set to ECL -1.3V
Set to 50%