PRO USBL 18/34 deep

Fast mid-range communication and positioning - all-around performer for deep-water operations

PRO USBL 18/34 deep

System Overview

The PRO USBL 18/34 deep transceiver is a PRO modem with a built-in USBL antenna for combined communication, navigation and positioning with our field-proven S2C technology. Designed for reliable data links and accurate positioning fixes, it achieves up to 13.9 kbit/s over 2000 m, ensuring stable performance for deep-water operations.

PRO USBL 18/34 deep

Key Features

18/34 deep is the version of 18/34 in Titanium housing, depth-rated to 6000 m - ideal for deep-sea operations that require fast connections between devices at similar depths.

[01]

Versatile all-around performer

With their balance of speed, range, and directivity, 18/34 deep models are a great choice for mid-range deep water operations, and can be combined with 18/34 and 18/34 hemi for extended acoustic coverage

[02]

Maximum flexibility and interoperability

Full-fledged PRO modem inside, offering the widest selection of configuration options and add-ons - including the JANUS option, enabling interoperability with third-party acoustic devices

[03]

Communication and positioning in one

Pair with 18/34 modems as transponders for USBL or hybrid positioning and simultaneous data transfers - no mode switching needed

PRO USBL 18/34 deep

Technical Specifications

General

Speed Range

Fast short- and mid-range devices

Range

Mid-range

Transducer Beam Pattern

horizontally omnidirectional

Frequency Band

18 - 34 kHz

Acoustic Connection

up to 13.9 kbit/s

Listed bitrate refers to performance in optimal acoustic conditions and varies with the environment.

Operating Range Revision Notice

We have corrected the operating range listing for this model. The previously stated operating range of 3500 m reflects performance under near-ideal signal propagation and processing conditions. In typical field applications, a realistic average operating range of approximately 2000 m can be expected.

Naming and compatibility notice

Before mid-2025, this model was offered as S2C R 18/34D USBL. Our product naming has been streamlined for consistency - the PRO USBL 18/34 deep modems are acoustically compatible with all existing S2C 18/34 devices.

Acoustic Performance Factors

Please note, that listed bitrate and operating range values refer to performance under optimal acoustic conditions and may vary with the environment. These figures indicate the upper limits of modem performance rather than guaranteed real-world results. Acoustic performance - including achievable range and data rate - depends on both environmental factors and the installation setup. It can be influenced by multipath propagation, variations in the sound velocity profile, ambient noise levels, and interference from vessel systems or nearby machinery. Optimal conditions typically include a calm sea state, low background noise, a uniform sound velocity profile, line-of-sight geometry, minimal multipath, and proper transducer placement.

Specifications are subject to change without notice.

PRO USBL 18/34 deep

Configration Options

PRO USBL 18/34 deep

Series

18/34

Contact

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Diver in full gear underwater interacting with a waterproof tablet on the seabed.