Survey Equipment

Sonardyne 7967: OBC/LRT Deck Unit

Availability: Rental

The Sonardyne 7967 OBC/LRT Deck Unit commands and programmes Sonardyne’s TZ/OBC transponders and Lightweight Release Transponders (LRTs).It consists of a deck unit and dunking transducer. It is capable of being operated through RS232 which allows raw range data to be logged and processed on a computer.


Supplied in a rugged, portable case.

Enables transponders to be tested and programmed with thousands of unique.

Highly secure coding sequence prior to commanding LRTs to ‘release’.

Powered by alkaline battery packs.

Easy to operate


Operating frequency: HF (35–50 kHz)

Transmit source level (dB re 1 µPa @ 1 m): 185 dB

Receive sensitivity (dB re 1 µPa): 110 dB

Pulse length: 2 ms

Timing resolution: 16 ms


Used to configure transponder’s acoustic identification,

Used to test the transponder and in prior to deployment load the release ‘bit’ in the case of the Lightweight Release Transponders.

Measure ranges to the transponder

Bathymetric survey

Oceanographic survey

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