28/02/2023
912S-03967 - 01.04
15
EPIRB3 USER MANUAL
5.2 Optical Indications on activation
•
The LED will illuminate green (blue if RLS is enabled) for 1 second.
•
The strobe light
will start flashing.
•
Within 1 minute* of activation, the indicator LED will flash a quick burst of 5
indicating 406MHz transmission.
•
Following the first 406MHz transmission the LED will flash 8 times** (green
if a GNSS fix has been acquired or red if there is no fix) indicating AIS
transmission.
5.2.1 LED Indications with RLS Enabled
LED
When
Transmit
GNSS
RLS
(x1)
Every 5 s
Searching
(x3)
Once
Fix acquired
(x5)
At transmit
406MHz
No Fix
Request sent
(x5)
At transmit
406MHz
Fix acquired
Request sent
(x8)
At transmit*
AIS
No Fix
(x8)
At transmit*
AIS
Fix acquired
(x1)
Every 2.5 s**
121MHz
Reply not received
(x1)
Every 2.5 s**
121MHz
Reply received
(x1)
Every 2.5 s
5.2.2 LED Indications for units configured with non-RLS Protocol
LED
When
Transmit
GNSS
(x1)
Every 5 s
Searching
(x3)
Once
Fix acquired
(x5)
At transmit
406MHz
No Fix
(x5)
At transmit
406MHz
Fix acquired
(x8)
At transmit*
AIS
No Fix
(x8)
At transmit*
AIS
Fix acquired
(x1)
Every 2.5 s**
121MHz
(x1)
Every 2.5 s
*
The AIS transmissions will show as 8 flashes (1 every 2 seconds) as a sequence
repeated once every minute
**
The 121MHz Homer will not transmit until after the first 406MHz transmission.
