NavCom StarUtil Rev.G - Manual (Page 125)

StarUtil User Guide – Rev. G
Chapter 10 ...............................................................................1PPS/Events
This chapter provides guidance to configure the Events input and the 1PPS output pulse
according to application requirements:
9 Event: The receiver accepts an event input pulse to synchronize external incidents requiring
precise GPS time tagging, such as aerial photography. For example, the action of a
camera’s aperture creates an input pulse to the Event port. The receiver outputs position
and time information relative to each photograph taken.
9 1PPS: The 1PPS pulse output from the receiver is synchronized with GPS time. This pulse
is used for a variety of Time/Mark applications where relative timing is required.
‡
Refer to the Technical Reference Manual (TRM) for message details. Refer to
the GPS user guide for
9 Select nu bar. The PPS and Event
Latch window opens (see
hardware interfacing specifics and wiring.
Receiver > Setup > PPS and Event Latch from the me
Figure 126).
). The Event Latch Message 0xB4 is output only when the chosen pulse edge of
the incoming event is sens
Figure 126: PPS and Event Latch Window
Event Latch
9 The Events Input can be triggered on the Falling or Rising edge of the input pulse.
9
Add message B4 to the NCT Binary Messages window and set the Rate to On Trigger (see
Figure 127
ed by the receiver.
10-123