Gw Instek GDS-2304A 4-channel oscilloscope, Digital Storage oscilloscope, GDS-2304A Datenbogen

Event 

Sets the number of events (1 ~ 65535) 
passed after the trigger event, until the 
real trigger timing.   

 

Set to 
Minimum 

Sets the source trigger to the minimum 
time.  

When 
(Pulse Width) 

Sets the pulse width (10ns ~ 10s) and the triggering 
condition. 

> 

Longer than  = 

Equal to 

< 

Shorter than  ≠ 

Not equal to 

Threshold  
(Pulse Width)  

Sets the amplitude threshold level for the pulse 
widths.  

Threshold 

–XXV ~ +XXV, user-set level 

Set to TTL 

1.4V 

Set to ECL 

-1.3V 

Set to 50% 

Sets the threshold to 50% 

Standard 
(Video) 

NTSC 

National Television System 
Committee 

PAL 

Phase Alternate by Line 

 

SECAM 

SEquential Couleur A Memoire 

Polarity  
(Pulse Width, 
Video) 

 

Positive polarity (triggered on the high 
to low transition) 

 

Negative polarity (triggered on the 
low to high transition) 

Polarity  
(Pulse Runt) 

 

Positive polarity (positive runt) 

 

Negative polarity (negative runt) 

 

Either (either negative or positive 
runt) 

Trigger On  

 Selects the trigger point in the video signal.