BIRD SignalHawk SH-36S-RM-ASL, Operation Manual, Page: 65 / 195

User Interface Menus and Settings
51
External Trigger Menu
External Trigger Menu
Item Name Description
1
Enable Trigger
On /Off
Indicates trigger source, Set to On for external trigger, Off for
internal trigger.
2 Low Level Triggers a sweep if input = 0 ± 0.5 V (TTL “Low”).
3 High Level Triggers a sweep if input = 4.2 ± 0.8 V (TTL “High”)
4 Rise Edge Triggers a sweep if the input goes from “Low” to “High”.
5 Fall Edge Triggers a sweep if the input goes from “High” to “Low”.
6 Either Edge
Triggers a sweep if the input goes from either “High” to “Low”
OR “Low” to “High”.
7 Gate Delay
Length of wait after the trigger signal and before beginning a
sweep. The range is 100 µs to 1 s.
8 Back...
When clicked, closes the External Trigger Menu and returns to
the Trigger Source Menu.