Kongsberg MST 324 Mini SSBL Transponder

Available as:
  • Rental
  • Sale (ex rental)

Kongsberg MST 324 Mini SSBL Transponder – Available for rental, hire and ex-rental purchase from Ashtead Technology.

The Kongsberg Mini SSBL transponders (MST) are medium frequency mini-transponders. They are designed to be used with the the HiPAP system and HPR series underwater positioning and navigation systems. Ideal for applications where a small and lightweight unit is required. The MST transponder is delivered with a moulded protective plastic coating with all switches and connectors recessed within the end cap for added protection and the transponder comes with a pigtail with connector. The MST 324 operates in the 30kHz band, depth rated to 2000 metres, with a ±45° beamwidth.

The design makes extensive use of surface mount technology. This allows all of the hardware to be confined to two boards, thus increasing reliability and reducing spare part holding requirements. The unit is designed with a modular construction. The electronics, battery pack, transducer and end cap can easily be replaced individually.

Sale Information
Ex-rental unit for sale - sold as seen. Contact us for information.

Technical specifications

SOURCE LEVEL (rel.1 µPa ref. 1m)
MST 324197 dB - Source level can be reduced by 6dB using an internal link (increases the battery lifetime)
Receiver Sensitivity (rel. 1 µPa)100 dB - Sensitivity can be decreased by 10dB using an internal link.
HOUSING MATERIAL / COATINGHard anodised aluminium / Polyurethane
MF CHANNELS (30 kHz band)HiPAP / HPR400 - 56 channels, HPR 300 - 14 channels
Internal BatteryRechargeable NiMH standard, Lithium available as an optional extra
External22-26 Vdc (40W)
Charge MethodConstant Current
Charge rate0,5 C (fast charge)
Permit fast charge between10°C and 40°C
Transponder connectorSubcom MCBH5M (5 pin)
Pigtail ConnectorSubcom MC1L5F (5 pin)


368mm x 76mm (L x Diameter)14.5 x 3" (L x Diameter)"2.7kg (in air), 1.2kg (in water)6lbs (in air), 2.6lbs (in water)