User's Manual

7
Emergency Operation with GPS (Fastfind Plus)
When the PLB is first activated the inbuilt GPS receiver will attempt to acquire a valid
geographical position fix.
Once a GPS position fix is acquired the GREEN indicator light will start to
flash once every 3.5 seconds in sequence with the red indicator light.
GREEN and RED indicator lights ‘long flash’ in sequence once every
50 seconds to indicate each 406 MHz transmission containing a valid
GPS position.
After 4 hours without a valid GPS position fix the GREEN light will go
out completely.
Self
-
test/OFF
button
GPS
PLB
c
ontrol
s
(Fastfind
Plus)
Activation
button
Green l
ight
flashes when
GPS position
is good
Red light
- 50 seconds -
-
3.5 seconds
-
-
- 3.5 seconds -
- 50 seconds -
- 50 seconds -
GPS position acquired
Transmission with valid GPS position
GPS position lost