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406 MHz Distress Beacon
Search and Rescue teams will find you faster if you activate
a superior 406 MHz beacon. It is detected more quickly than a 121.5MHz
beacon and can be located to within 5kms. If the 406 MHz beacon also
has a built-in Global positioning System, the location can be pinpointed
to within 120 metres. A 121.5MHz beacon will only narrow your position
down to 20kms.
What is a satellite distress beacon?
Satellite beacons take much of the search out of search and
rescue. When activated, beacons transmit a signal to the Cospas-Sarsat
global search and rescue satellite system which processes the information
to obtain a position. This information is relayed to Australian Search
and Rescue (AusSAR) in Canberra. |
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Beacons come in many shapes and sizes. They include Emergency locator
Transmitters (Ells) found in aircraft, hand-held Personal locator
Beacons (PLBs) and marine-based Emergency Position Indicating Radio
Beacons (EPIRBs).
2009 - a change is coming
From February 2009 the Cospas-Sarsat satellite system will
no longer process the 121.5 MegaHertz (MHz) frequency used by most
distress beacons. The distress frequency used by the satellite network
will be 406 MHz.
Why the change?
AusSAR detects many false distress alerts from non-beacon transmitters
that interfere with the 121.5 MHz frequency and from inadvertently
activated beacons. in Australia about 98 percent of the distress alerts
detected are false.
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False alerts can be resolved quickly with 406 MHz beacons as they
transmit a digital signal that identifies the owner. AusSAR keeps
a register of 406 MHz beacon users and can simply make a phone call
to determine if there is a genuine emergency or not.
If there is a problem, a 406 MHz beacon will eliminate much of the
guesswork in a search by telling AusSAR your name, address and the
type of boat, aircraft or vehicle you are in.
121.5 MHz beacons are based on obsolete analogue technology that does
not support an identifying message. In most cases, when these beacons
begin transmitting, an expensive search has to be launched to determine
if there is someone in distress.
These searches could divert rescue resources away from a genuine emergency.
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What should you do?
2009 may seem a long way off, but you should start planning to
upgrade now.
If you already have a 406 MHz beacon then you need not worry as long
as it is registered. If you are not sure call AusSAR on 1800 641 792
and ask a search and rescue officer to check. You should have your
beacon's fifteen character hexadecimal code ready for AusSAR.
if you are relying on a 121.5 MHz beacon, you could upgrade when your
beacon's battery is due to be replaced or you could simply make the
change now. 406 MHz beacons are more expensive, but the price is expected
to fall over time. Regardless of the price, if it saves your life,
it is cheap insurance. |
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AMSA Contact Details
Rescue Coordination Centre (RCC) 24 Hour Emergency contact numbers:
1800 641 792 (Maritime) 1800 815 257 (Aviation)
406 MHz beacon registration advice: Telephone: 1800 641 792
Additional information on distress beacons can be found at:www.amsa.gov-au/beacons
Additional information about the Cospas-Sarsat international satellite
system can be found at:
www.cospas-sarsat.org/index_Frame_English.html
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