the Inmarsat-E/E+ system has been shut down on 1.12.06 the description
for historical reference only.)
The most reliable EPIRB system on the
market is the Inmarsat-E system. Inmarsat satellites are maintained by
the Inmarsat Organisation who is also responsible for the worldwide
satellite communication on SOLAS ships. Inmarsat satellites also
for a high redundancy with a spare satellite “waiting” beside every
in “hot-standby” and with at least two dedicated land earth stations
in each satellite footprint. Inmarsat made 667 channels available for
distress system. This allows for future expansion with nearly no
limitation. Inmarsat satellites are geostationary satellites and
provide for fast alarm forwarding without any unwanted delay.
advantage of geostationary satellites is that there is no waiting for a
satellite to pass over in case of an emergency.
are equipped with a built-in GPS receiver because, due to the missing
movement, no Doppler estimation can be performed. Inmarsat EPIRBs
the position in case of an emergency as part of the message. Inmarsat
do not need programming because they transmit a unique system code. The
identity of the user is assigned by completing a form on purchase of
beacon and sending it to Inmarsat by fax at no extra cost compared to
a beacon. Inmarsat EPIRBs are also the first EPIRBs to comply to new
recommendations that include several features against false alarms. For
example there is a two minute period after activation where an audible
alarm will be generated by the EPIRB to give the user the last chance
deactivate the beacon. After this two minute period the beacon
via the geostationary Inmarsat satellites with no additional delay.
Inmarsat EPIRBs transmit the type of
if the ships sinks and the beacon is released from the float free
“sinking” will be transmitted. If the beacon is acti-vated manually
“unspecified distress” will be transmitted as the type of emergency.
||Inmarsat EPIRBs may also be
a remote control unit (RCU) that allows for manual input of the type of
emergency (IMO codes).The RCU is of interest for SOLAS vessels, because
only one EPIRB fulfils the SOLAS requirements for a float free EPIRB
activation of the beacon from where the ship is normally been steered.
Today approved and light weight
EPIRBs with built-in GPS and 121,5 MHz homing beacon are available in
same price range like COSPAS/SARSAT with built-in GPS.
The navtec global-3
EPIRB is the smallest EPIRB on the world market working with
It is extremly fast (only three minutes), light-weight (1,2 kg) and
approved for all vessels.