Diver Telephony

SubVox Topside: Whole-Crew Surface Link

SubVox Topside One station
Every diver connected

SubVox Topside is a battery-powered surface station that reaches any size dive team by voice, up to 1000 metres out.

1000metresVoice range to every diver
∞diversNo limit on team size
20hoursBattery life, receive mode
  • Two-way voice, unlimited team size — the operator and every diver on the shared channel speak freely, up to 1000 metres apart, with no shifts to schedule and no wait to connect
  • Eight-channel interference control — the supervisor matches the station's channel to the dive team's units, so other stations working nearby don't cross-talk
  • Standalone, battery-powered operation — the station runs on its own power, with no vessel electrical connection needed
  • 3000+ charge-discharge cycles — long service life before replacement
  • −10 to 50 °C operating range — reliable from Arctic dives to tropical heat
  • High-sensitivity receiver — picks up faint transmissions at range
  • Built-in voice activity detector — distinguishes speech from background noise
  • Compatible with OTS, Ocean Reef and similar systems — shares the frequency bands most underwater telephones use
  • Shockproof, IP67-rated case — sealed when closed, for transport and storage
  • 2 kg, one case — no cranes or deck gear to bring aboard

SubVox Topside is the surface voice every dive team needs, built for conditions where consumer equipment fails. It runs on its own LiFePO4 battery for up to 20 hours in reception mode, rated to operate from −10 to 50 °C, while a submersible antenna does the actual listening over the side and the case stays on deck. Eight channels keep it clear of every other team working the same stretch of water, with no cap on how many SubVox Diver units can share the one assigned to this team. Because it uses the same frequency bands as OTS and Ocean Reef gear, it drops into a dive team's existing setup instead of replacing it. One station. Every diver on the line. No shifts to schedule.

SubVox Topside
The surface half of the SubVox voice system. Shockproof plastic case built around a rechargeable LiFePO4 battery. Ships with an AC charger and a 3.5 mm headphone adapter; pairs with SubVox Diver for underwater contact.
Submersible antenna
The station's underwater transducer, converting its electrical signal to acoustic energy and back. Connects to the station by cable.
Full specifications (PDF, 624 KB)

Acoustics

Operating range 1000 m
Voice bandwidth 300–4300 Hz
Source level 160 dB re 1 µPa @ 1 m

Electrical

Battery 60 Wh LiFePO4, 3000+ cycles, up to 20 h

Interface

Compatibility OTS, Ocean Reef, standard analog

Mechanical

Transducer cable 7 m
Dimensions 259 × 202 × 115 mm
Weight 2 kg

Environment

Operating temperature −10 … +50 °C
Rating IP67 (lid closed)

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