SiS Sensoren Instrumente Systeme GmbH

ARB 6000 Argos Radio Beacon

ARB 6000 Photo


  • Member the of Marine Recovery Beacon family
  • Titanium housing
  • Up to 10 years long term deployment time with Kantseals
  • 2 years deployment time with O-rings
  • All mechanics calculated with 50% extra safety
  • Small housing (60 mm diameter, 530 mm length)
  • Powered by 3 D-type cells of any chemistry
  • Integrated power switch
  • Transmission time 4 to 12 weeks depending on battery type
  • Water depth up to 6000 m
  • Triggered by pressure switch
  • Trigger threshold variable (standard 30 metres)
  • Double axial Kantseals or O-ring seals
  • Antenna construction waterproof up to 6000 m
  • Separate antenna as an option
  • Low power ARGOS PTT

The ARB remotely monitors the surfacing of underwater moorings, deep-sea landers, remotely operated vehicles (ROVs), autonomous underwater vehicles (AUVs) or other marine platforms operational under water.

If this happens inadvertently the device is an alert instrument similar to the standard SMM (Subsurface Mooring Monitoring Beacon) and one may use the SMM Service of CLS Collecte Localisation Satellites for monitoring the status and the surface position of the "underwater" platform. Compared with the SMM, the ARB is more flexible, smaller, and cheaper in price than a SMM 6000. Use of a three battery power supply produces a medium term transmission time, rather than the long term of the SMM 6000 powered by 10 D-type Lithium cells. However, transmission time reduction is not as great as that for power because a more efficient, lower power PTT is used.

Typical applications are research work in a limited area of a few hundred miles radius and of some weeks duration. On the one hand, instruments can be far enough away for an alert not to be detected by line of sight communications (VHF/UHF radio or optical) and on the other, planned recovery can be thwarted by instrument drift. With location data from the ARB and the CLS service, both aspects are known. With additional equipment of the Marine Recovery Beacon series of products, one has the means to recover one's instruments at any time under any environmental circumstances.

Specifications (Preliminary)

Mooring depth6000 m
Pressure switch threshold30 m standard; other depths on request
Dimensions (l x d)530 mm (case) + 210 mm (antenna) x 60 mm
Mass without batteries5.2 kg
Displacement1.6 dm3
Power supply3 D cells of any chemistry - NiMH, Alkaline, Lithium, peak current 500 mA
Mooring life2 years with O-rings, up to 10 years with Kantseals, not allowing for battery self discharge
Transmission life4 to 12 weeks at mean current 3 mA when surfaced

Additional Information

SiS GmbH reserves the right to change specifications without prior notice.

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