MINI 18/34
Fast mid-range communication and positioning - all-around performer for same-depth and shallow water operations
Fast mid-range communication and positioning - all-around performer for same-depth and shallow water operations
MINI 18/34
The MINI 18/34 modem delivers full-duplex underwater communication and simultaneous positioning with our field-proven S2C acoustic technology. Designed for fast, reliable data links and accurate positioning fixes in reverberant shallow waters, it achieves up to 13.9 kbit/s over 2000 m, ensuring stable performance across a wide range of subsea applications.
MINI 18/34
18/34 is the base model with a horizontally omnidirectional, donut-shaped beam pattern optimal for data transfers in shallow waters and between devices operating at similar depths.
[01]
Versatile all-around performer
With their balance of speed, range, and directivity, 18/34 models are a great choice for mid-range shallow water operations, and can be combined with 18/34 deep and hemi for extended acoustic coverage
[02]
Light and compact
MINI form factor - smaller and lighter build without compromising on performance. Well-suited for space-constrained setups and AUV/ROV integration
[03]
Communication and positioning in one
Pair with other 18/34 devices for USBL, LBL or hybrid positioning and simultaneous data transfers - no mode switching needed
MINI 18/34
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 M 18/34. Our product naming has been streamlined for consistency - the MINI 18/34 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.
MINI 18/34
MINI 18/34
Contact
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