Getting Started Manual
WP7Zi-GSM-E RevB
80
Pattern (Logic)
Logic
trigger enables triggering on a logical combination (pattern) of five
inputs: CH1, CH2, CH3, CH4, and AUX. You have a choice of four Boolean
operators (AND, NAND, OR, NOR), and you can stipulate the high or low
voltage logic level for each input independently.
TV
Not available on all instruments,
TV
triggers provide stable triggering on
standard or custom composite video signals. Use them on PAL, SECAM,
NTSC, or HDTV systems.
Qualified First
In single trigger mode, Qualify First arms the oscilloscope on the A event,
and then triggers on all subsequent B events. This button is enabled when
using the sequence sampling mode. It is commonly used in sequence mode
for disk drive applications with the index pulse defined as the A qualifier
signal and the servo gate signal as the B triggering events.
Cascade
The Cascade trigger allows you to define successive trigger
Stages
(referred to as Stage
A
,
B
,
C
, and
D
) as
arm
,
trigger/arm
,
trigger/arm
,
trigger
criteria, respectively.
