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Ocean Signal

Ocean Signal PLB3

£524.30loading (inc VAT @ 20%)
Ocean Signal PLB3
  • Information

Ocean Signal PLB3

Ocean Signal PLB3: Personal Locator Beacon with AIS, RLS, and NFC Mobile Connectivity

  • Return Link Service (RLS Capable)
  • 406MHz & 121.5MHz Signals
  • Integrated AIS Alert
  • Visible Light and IR Strobe
  • Multi GNSS
  • Simple Life Jacket Integration

With the introduction of Automatic Identification System (AIS) functionality, Return Link Service (RLS) technology, and Near Field Communication (NFC) capabilities in one 406 MHz Personal Locator Beacon (PLB), the Ocean Signal PLB3 represents a significant step forward in the evolution of PLB’s. The merging of 406 MHz and AIS distress messaging effectively pairs both global and local rescue, thereby maximizing access to the most effective rescue resources available. In addition, NFC capability on the Ocean Signal PLB3 provides users with the world’s first smartphone connected PLB and the all-new Return Link Service feature provides users with the comfort in knowing that their distress message has been received and their location detected by worldwide Search and Rescue personnel.

The world’s FIRST Personal Locator Beacon to include AIS and the world’s FIRST PLB to include NFC, the Ocean Signal PLB3.

Ocean Signal PLB3 Features

  • No Subscription Required
  • 406 MHz Cospas Sarsat Distress Signal (MEOSAR Compatible)
  • 121.5 MHz Local Homing Signal
  • AIS (Automatic Identification System) Locating Signal
  • Smartphone connectivity via NFC (Near Field Communication)
  • Free Ocean Signal Beacon Mobile App (IOS and Android)
  • Return Link Service (RLS) Functionality
  • GNSS via GPS and Galileo Satellites
  • Strobe and Infrared Strobe Light
  • Global Coverage
  • Simple PFD attachment
  • Designed to Integrate with common Inflatable PFDs
  • Multifunction Clip System Included
  • Small and lightweight
  • 5-year battery life
  • Over 24 hours Operational Life

Ocean Signal PLB3 Specifications

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: 121.5MHz
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

Visible Light Strobe

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

Infra Red Strobe

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


Type: Lithium/Iron Disulphide (Li/FeS2)
Operating lifetime: >24 hours @ -20°C (-4°F)
Lithium Metal Weight (for air transport): <2mg
Replacement Interval: 6 years from date of manufacture

GNSS Receiver

Satellite Channels: 72 acquisition
Sensitivity: -167dBm
Cold Start Re-acquiaition: -148dBm
GPS Antenna: Microstrip Patch


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): 40°C (104°F) at 93%
Drop (hard durface): 1m : 6 sides
Water Immersion: >10m (1.0bar) : > 60 minutes
Thermal Shock: 45°C into 100mm of water : > 1 hour


Cospas Sarsat: T.001 / T.007
EU RED: EU Radio Equipment Directive 2014/53/EU
UK RER: Pending
FCC: Pending
ISED: Pending
AMSA: Pending