Ocean Reef Alpha Pro X-Divers Hardwired Dive Communication System

Ocean Reef Alpha Pro X-Divers Hardwired Dive Communication System

The Ocean Reef Alpha Pro X-Divers is a professional-grade, hardwired, full-duplex underwater intercom system engineered specifically for commercial diving operations, subsea inspections, military dive teams, and search-and-rescue (SAR) missions. Designed to overcome acoustic shadow zones, thermocline distortion, and ambient cavitation noise common in wireless units, this system guarantees zero-latency, hands-free bi-directional communication between the surface supervisor and up to two simultaneous divers.

The complete setup integrates a ruggedized surface console, high-tensile 6-pin umbilical communications cabling, and dual-piezoelectric underwater mask communication units. Equipped with individual diver channel selection, cross-talk bridging, audio-out recording outputs, and remote diver volume adjustment straight from the surface rack, the Alpha Pro X-Divers delivers high intelligibility under extreme commercial diving conditions.

Model Details

• System Model: ALPHA PRO X-DIVERS Full System
• Master System MPN / SKU: OR033132
• Surface Console Unit MPN: OR033133
• Underwater Unit 2.0 MPN: OR033160
• Standard Professional Umbilical Cable (50m): OR033134
• Cable Tensile Strength Rating: >4,000 N breaking strength (10mm OD reinforced jacket)

Technical Specifications

Key Features

1. Full-Duplex Dual-Diver Architecture: Enables simultaneous two-way, open-mic conversation without push-to-talk (PTT) delay across Diver 1, Diver 2, and the surface tender.
2. Dedicated Channel Isolation & Cross-Talk Control: Multi-position mechanical selector isolates Diver 1, Diver 2, or bridges both divers and surface in full conference mode.
3. Surface-Controlled Diver Gain: Tenders can independently tune the receiving volume of each diver’s underwater module directly from the topside deck.
4. Dual Piezoelectric Speakers & Noise-Cancelling D-Mic: Underwater unit 2.0 incorporates dual speakers for balanced stereo-grade reception and a high-noise-attenuation dynamic microphone.
5. Subsea Recall Alert System: Topside audio signal generator sends an instant acoustic recall ping to diver headsets in emergency or team evacuation scenarios.

Target Applications

• Commercial Underwater Hull & Propeller Inspection: Critical topside voice logging during NDT and class surveys.
• Subsea Construction & Welding: Hands-free coordination for rigging, pipeline laying, and salvage operations.
• Public Safety & Police SAR Diving: Search, evidence recovery, and diver monitoring in zero-visibility conditions.
• Marine Science & Hyperbaric Research: Real-time logging of subsea sampling and observational parameters.
• Commercial Diver Training Institutes: High-clarity supervisory monitoring of student dive evolutions.

Engineer Expert’s Field Guide

• Pin Maintenance & Dielectric Treatment: The 6-pin subsea connectors operate in an aggressive electrolytic environment. Apply high-grade, food/oxygen-safe silicone dielectric grease (e.g., Dow Corning 111) to the rubber pins prior to mating. Never connect pins while the surface unit is powered on.
• Umbilical Management & Strain Relief: While the cable is rated for >4,000 N, dynamic tugs from tenders can cause micro-fractures in internal copper conductor pairs over time. Always secure the diver-side cable strain-relief lanyard directly to the diver’s harness D-ring, never directly to the mask frame.
• Charging Discipline: The surface console utilizes a sealed internal 12V supply. To maximize cycle life and prevent under-voltage lockout, charge the unit every 60 days during off-season standby and top off after every operational dive shift.
• Fold-in Mask Storage: The Underwater Unit 2.0 is designed to fold flush inside the Neptune mask oral-nasal pocket without unmounting. Ensure the dynamic D-mic diaphragm is completely rinsed with clean, warm demineralized water and fully air-dried before folding to prevent salt crust crystallization on the membrane.

Frequently Asked Questions

Can the Alpha Pro X-Divers be used with a single diver instead of two?

Yes. The surface console operates seamlessly with a single diver connected to Port 1 or Port 2. Set the channel selector to the active diver port to eliminate open-circuit background hum from the unused terminal.

Can topside dive tenders record communication audio onto an external video overlay system?

Yes. The surface console is equipped with an isolated standard audio-out port designed to feed real-time two-way audio directly into digital video overlays, DVRs, or external monitoring decks.

What is the maximum recommended cable length for this hardwired system?

The standard system ships with a 50-meter cable, but the line driver can maintain full-duplex clarity without signal degradation on custom umbilicals up to 200 meters (650 feet).

Can the underwater unit be left attached to the mask during transport?

Yes. The 2.0 version is built with a flexible pivot hinge that folds directly inside the mask cavity, eliminating the need for teardown between dive sites.