WASSP Multibeam Transducer
WASSP multibeam transducers are manufactured by Electronic Navigation Ltd in Auckland New Zealand. The transducer design is optimised to provide high resolution, but to also fit within a small form factor design.
Frequency and beam coverage
Wassp 160 kHz
The WASSP multibeam sonar uses a transducer frequency of 160 kHz to transmit and receive 112 sonar beams across a 120° swath of the seafloor and water column port-starboard of the boat in depths of between three and 200 metres.
This frequency has been selected as a good cross point between high resolution and deep water sonar performance.
In 100 metres of water, the swath will cover a strip of sea floor 346 metres wide from port to starboard – 173 metres either side of the vessel.
Wassp 80 kHz
Wassp WMB80F multibeam sonar is an 80kHz sonar optimized for midwater and bottom commercial fishing operations. The 80kHz frequency will enable fisherman to receive information in a 120°swath with bottom profiling at 90° down to 500m depth. That equates to a 1km swath every ping providing important profile and hardness information.
WASSP 160 kHz Transducer
Piezo-ceramic
Each Wassp multibeam transducer comprises of two separate arrays – one for transmit, one for receive. Both arrays contain different piezo-electric ceramics, optimised for either transmit power, or receive response and sensitivity.
By optimising the ceramic types, lower power levels can be used, thereby minimising the impact of ‘sonar noise’ in the marine environment.
Gland Dimensions
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INSTALLATIONS
Trawler in France
Longlining in Iceland
Beam trawler in England
Trawling in Scotland
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