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Ultra-Short Baseline and Super-Short Base Line is a method of underwater acoustic positioning. A USBL transmits an acoustic pulse which is detected by a transceiver and converted into a range. With both range and distance measurements, a USBL or SSBL is able to position an AUV or ROV kilometers away with a 0.1 angle accuracy.

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Gaps M5
Gaps M5


Gaps M5 is a medium frequency ultra-short baseline (USBL) positioning system for accurate location, positioning and tracking of subsea assets, from ultra-shallow wat

iXblue Gaps
Gaps M7


Gaps M7 is a high-performance Ultra Short Baseline (USBL) positioning and communication system dedicated to subsea assets localization. It combines a USBL antenna an


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Sonardyne International

If you’re using a Ranger 2 system to track the position of a subsea target from a vessel of opportunity, over an extreme range, or from a pipelay vessel’s stinger, G

Nexus Lite USBL
Nexus Lite USBL

Applied Acoustics

Nexus Lite is an Ultra Short Baseline (USBL) underwater positioning and tracking system centred on a multi-element, single transducer that transmits and receives aco

Nexus 2 Transceiver 2780
Nexus 2 USBL, 2780 Transceiver

Applied Acoustics

Able to determine the positions of up to 16 dynamic subsea targets simultaneously, Nexus 2 is ideal for many deep or shallow water applications where multiple assets

Kongsberg µPAP 201_MGC
µPAP 201_MGC

Kongsberg Maritime

The μPAP Precision Acoustic Positioning system operates in SSBL mode (LBL is also possible) where it measures the distance and direction to subsea transponders and c

S2C R 12/24 USBL
S2C R 12/24 USBL


S2CR 12/24 USBL is a depth-rated device for long range data transmissions and USBL positioning, providing data transfer rates up to 9.2 kbit/s over a 6000 m range.

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