GDS-1000A-U Series User Manual 
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4.  Press Standard repeatedly to 
select the video standard. 
5.  Press Polarity repeatedly to 
select the video signal 
polarity. 
6.  Press Line repeatedly to 
select the video field line. 
Use the Variable knob to 
select the field. 
NTSC: 1 ~ 262 (Field 2), 1 ~ 263 
(Field 1) PAL/SECAM: 1 ~ 312 
(Field 2), 1 ~ 313 (Field1) 
Configuring the pulse width trigger 
 
1.  Press the Trigger menu key. 
2.  Press Type repeatedly to 
select pulse width trigger. 
The pulse width trigger 
indicator appears at the 
bottom of the display. 
3.  Press Source repeatedly to 
select the trigger source.