Ocean Signal's PLB3 Personal Locator Beacon is a significant step forward in the evolution of PLB's, with the introduction of Automatic Identification System (AIS) functionality, Return Link Service (RLS) technology and Near Field Communication (NFC) capabilities - all housed within a compact unit that is just 20cm long and weighs only 190g.

The combination of 406 MHz and AIS distress messaging pairs both global and local rescue, maximizing access to the most effective rescue resources available. Plus, NFC capability provides users with the world's first smartphone connected PLB and the all-new Return Link Service feature provides users with the comfort of knowing that their distress message has been received, and their location detected by worldwide Search and Rescue personnel. 

Key Features:

121.5 MHz Local Homing Signal.
406 MHz Cospas Sarsat Distress Signal (MSEOSAR Compatible).
5-year battery life.
AIS Locating Signal.
Designed to integrate with common life jackets.
FREE Ocean Signal Beacon Mobile App - available on iOS and Android.
Global Coverage.
GNSS via GPS and Galileo Satellites.
Multifunction clip system included.
Over 24 hours operational life.
Return Link Service (RLS) Functionality.
Small and lightweight.
Smartphone connectivity via NFC (Near Filed Communication).
Simple PFD attachment.
Strobe and Infrared Strobe Light.

Specifications:

General:
Activation: Manual or semi-automatic when fitted to a compatible life jacket.
Class: Class 2 Operation.
Buoyant: No.
Size (L x W x D): 20 x 2.6 x 3.0cm.
Weight: 190g.
Operational Life: Over 24 hours @ -20C.
Waterproof: Yes.
Warranty: 5 years.

406MHz Satellite Transmitter
Frequency: 406.031MHz.
Tolerance: ±1kHz.
Output Power: 5W Typical.
Modulation: Phase ±1.1radians.
Emission Designator: 16K0G1D.
Encoding: Bi-phase L.
Data Rate: 400bps.

121.5MHz Homing Beacon:
Frequency: 121.5 MHz.
Stability: ±50ppm.
Output Power (PERP): 25-100mW.
Modulation: Swept Tone AM (3K20A3X).
Modulation Factor: 0.85-1.0.
Modulation Duty Cycle: >35%.
Duty Cycle: 98%.

AIS Transmitter:
Frequency: 161.975/162.025MHz ±500Hz.
Transmit Power (EIRP): 1 Watt ±3dB.
Baud Rate: 9600 Baud.
Synchronisation: UTC.
Messages: Message 1 (Position), Message 14 (Status).
Repetition Interval: 8 messages/min. /Message 14, 2x every 4 minutes.

Infra Red Strobe:
Light Type: IR LED.
Light Colour: 850nm.
Flash Rate: 20-30 per minute.
Intensity: 7.5mW/sr.

Visible Light Strobe:
Light Type: High Intensity LED.
Light Colour: White.
Flash Rate: 20-30 per minute.
Intensity: > 1 candela.

GNSS Receiver: 
Satellite Channels: 72 acquisition.
Sensitivity: -167dBm.
Cold Start: Reacquisition: -148dBm.

Battery:
Type: Lithium/Iron Disulphide (LiFES2).
Operating Lifetime: > 24 hours @ -20C.
Lithium Metal Weight (for air transport): < 2mg.
Replacement Interval: 6 years from date of manufacture.

Environmental:
Temperature Range (operational): Class 2 -20°C (-4°F) to +55°C (+131°F).
Temperature Range (storage): Class 2 -30°C (-22°F) to +70°C (+158°F).
Damp Heat (humidity): 40C at 93%.
Drop (hard surface) 1m: 6 sides.
Water Immersion: >10m (1.0bar) : > 60 minutes.
Thermal Shock: 45C into 100mm of water: > 1 hour.