ENOS Receiver – Autonomous Diving Rescue & Locating System

Summary

• Why ENOS
• How It Works
• Complete System
• Models
• Technical Data
• Benefits
• FAQ

ENOS Receiver: Autonomous and Reliable Locating System

Designed for dive centers and demanding captains

The ENOS® Receiver turns a critical situation into a swift, controlled rescue. Unlike conventional systems that depend on external services, ENOS® runs in a closed loop between the vessel and the divers’ ENOS® distress beacons. This delivers total independence and immediate reactivity—essential for dive operators, yacht captains, and professional crews.

This autonomous rescue system lets crews act fast under pressure, providing the exact direction and distance to a diver in distress. The interface is engineered to deliver the essentials in a clear, simple, reassuring way.

How the ENOS System Works

1. The ENOS® Receiver is installed onboard. Its GPS position [A] is determined via GPS satellites.
2. Upon surfacing, divers activate their ENOS® beacons, which immediately send a first alert to the receiver. The crew is instantly informed. The beacon then determines its own GPS position [B] automatically.
3. Once the beacon has its GPS position [B], it transmits the data to the ENOS® Receiver over an autonomous UHF radio frequency.

Combining the receiver’s GPS position [A] with the beacon’s GPS position [B], the ENOS® Receiver calculates the exact bearing and distance from the boat to the diver.

This information is displayed clearly and intuitively on the receiver screen.

GPS receiver for diver localization

The onboard ENOS® Receiver uses GPS satellites to fix its position. When a beacon is activated, it automatically transmits its coordinates to the receiver via an autonomous UHF radio link.

Locating drifting divers

ENOS® instantly alerts the crew in an emergency and displays the diver’s position clearly on the receiver screen.

Autonomous ENOS for fast, reliable rescue

As soon as a beacon is activated, the ENOS® Receiver relays a first alert onboard so the crew can respond quickly:

• a high-frequency audible alarm sounds;
• a red alert window appears on screen.

The alert message remains active until the crew acknowledges it.

When the ENOS® Receiver gets GPS data from the beacon, it renders a simple, easy-to-read graphic on screen:

• The cross in the circle center marks the vessel’s position.
• The arrow at the top of the circle shows the vessel’s heading.

Numbers (e.g., 1 and 2) inside the circle indicate the divers’ positions relative to the boat. The circle radius auto-scales to the farthest active distress signal. With suitable antenna height, the ENOS® reception area extends up to 5.6 NM / ~10 km.

The right-hand data panel lists all essentials for the rescue:

• Number of distress calls received
• Time since first alert
• Distance
• Diver positions
• Local date/time, position data, vessel speed and heading (top-right)
• Battery icon showing charge status
• Broken green bars indicating GPS satellites received (one bar per satellite)

Even under stress, the ENOS® Receiver screen keeps the diver’s position clear and unambiguous.

Outstanding performance

The ENOS® Receiver displays the boat’s position, bearing, and distance to the diver. Smart power management ensures extended autonomy.

Fast, comprehensive alerts

ENOS® relays a first alert to the dive boat the moment a beacon is activated, enabling an immediate crew response. All essential rescue data is clearly displayed, including distance, diver positions, local date and time.

A Complete ENOS System: Receiver and Beacons

The receiver’s efficiency relies on pairing with ENOS® beacons (ETX) carried by each diver.

• The GPS-based ENOS® Receiver onboard the dive boat or RIB.
• ENOS® beacons worn by divers, transmitting distress signals.

Once activated, the beacon streams its GPS position to the receiver, which displays the location instantly—so every alert is handled without delay by the crew on site.

The ENOS Receiver

To suit different operations, the ENOS® Receiver is available in:

• Fixed installation with a permanent bridge display and optional external antennas;
• Portable version in a waterproof Peli case—ideal for RIBs and easy transport.

The ENOS Beacon

The ENOS® Beacon weighs only 160 g, is pressure-tight to 100 m, and mounts securely to dive gear. With up to 170 h autonomy, it’s intuitive—even under stress: just turn the switch to activate. Learn more about the beacon

Drifting diver localization in strong currents

Despite precautions, divers can be caught by strong currents. ENOS®, the electronic rescue and locating system, provides a crucial solution for surface emergencies.

Onboard dive boat GPS receiver and rescue system

With the ENOS® Receiver installed on the dive boat and ENOS® beacons carried by divers, the system ensures precise localization and rapid response in any emergency.

ENOS Receiver Models (ERX-I, ERX-I-BT, ERX-P)

Choose the ENOS® Receiver model that best fits divers, centers, and vessels:

Note: Indoor use requires external antennas (available as accessories).

Request Your ENOS Quote

Contact us for a tailored quote and equip your vessel with the leading autonomous diving rescue & locating system—trusted by dive centers, liveaboards, and private yachts worldwide.

Benefits of Diver Localization

These factors are decisive in diving and maritime operations as they ensure immediate reactivity, technical reliability, and peace of mind for both crew and divers.

Technical Benefits:

• Accurate localization: clear display of direction and distance, updated in real time via integrated GPS.
• Multi-alert capability: the receiver can manage multiple ENOS® distress beacons and signals simultaneously.
• Optimized autonomy: up to 20 hours of receiver operation with its integrated rechargeable battery.
• Marine-grade robustness: IP67 waterproof housing engineered for demanding environments.
• No recurring costs: no license, no subscription, completely free to operate.

User Benefits:

• Autonomous diver rescue system: designed to identify and manage emergencies quickly, including drifts caused by strong currents, ensuring a safe and unforgettable diving experience.
• Instant alarm activation: an audio and visual alert is triggered directly onboard the support vessel as soon as a beacon is activated.
• Peace of mind: a solution that strengthens confidence for divers and captains alike, even in challenging conditions.

Be ready to meet every challenge of your underwater explorations. From dive boats to the most demanding maritime environments, discover how ENOS® GPS-supported units adapt to all your aquatic activities.