epirbs how they work - united states coast guard · personal locator beacon . plb . manual...
TRANSCRIPT
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Beacons – How They Work
SAR Controllers Training 2013 19 – 21 March 2013
LTJG Timothy Sinquefield
SARSAT Operations Officer
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C/S A.003
• Since the determination of the cause of false alerts is totally dependent on the feed-back information received from national RCCs and SPOCs, national Administrations should encourage their RCCs and SPOCs to provide timely information which describes the cause and disposition of each beacon activation, when an alert is received from their associated MCC.
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C/S A.003
• Operational false alerts may have a variety of origins and their elimination is of interest to all users. Distress alert statistics should identify the cause of operational false alerts. Each operational false alert should be categorized as being caused either by beacon mishandling, beacon malfunction, mounting failure, environmental conditions, voluntary activation, or unknown circumstances.
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C/S 406 MHz Beacons
• COSPAS-SARSAT 406 MHz Beacons EPIRB Emergency Position Indicating Radio Beacon
PLB Personal Locator Beacon
ELT Emergency Locator Beacon
SSAS Ship Security Alert System
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EPIRB
Two basic types
CAT I – automatic release and activation
CAT II – manual release
Electronic Position Indicating Radio Beacon
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EPIRB – Brackets
CAT I CAT II
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Types of Brackets
• Category 1 (Float Free) Automatic Release
between 4 to 13 ft. EPIRB is transmitting
when it gets to the surface
Hydrostatic release needs replacement every two years.
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CAT 2 BRACKET
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CAT 2 Bracket
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CAT 2
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Testing Bracket Magnet
A Compass provides simple detection on bracket magnet.
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Activation
• Typical activation includes
• Auto – put in “Armed” or “Ready” position
• Manual - switch to “Manual” or “On” Has a barrier to keep from accidental manual activation.
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EPIRB SWITCHES
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EPIRB SWITCHES
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EPIRB SWITCHES
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406 MHz S-VDR
• Is a CAT 1 EPIRB
Simplified Voyage Data Recorder
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Lanyard
Lanyard: • 5 to 8 meters • Orange/yellow color Not rot/deteriorate
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PLB
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Personal Locator Beacon PLB Manual activation Carried on persons May or may not float Held out of water to
transmit NO Strobe light required Min 24 hour transmit Some GPS Enabled
Red 406 Button Underneath
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PLB
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ELT
Electronic Locator Beacon
Operational Applications
• Automatic Fixed - AF
• Automatic Portable - AP
• Survival Equipment – S – Class A (buoyant)
– Class B (non-buoyant)
• Automatic Deployable - AD
406/121.5 MHz
24 hr Transmitter
“ON-OFF-ARMED-RESET” controls
ELT activated by pilot, crash forces or water activated.
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AUTOMATIC ACTIVATION
• G-Switch - fixed
• Some are water activated portable/ditch bag
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DESIGNED FOR ROTARY WING
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EPIRB – MANUAL ACTIVATION
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VARIOUS ANTENNA TYPES
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SSAS
• 406 MHz Ship Security Alert System (SSAS)
• All SOLAS vsls on international voyages.
• Two stealth switches for remote activation.
• Alert goes to Atlantic Area.
Ship Security Alert System
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Manual Activation
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Questions
?
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