8190-3161 Datasheet, PDF (1/2 Pages) Sonardyne sound in depth – Wideband Mini Transponder (WMT)

Sonardyne UK (Head Office)
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Datasheet
Wideband Mini Transponder (Remote Transducer Version)
Description
Sonardyne’s existing Wideband Sub-
Mini transponder (WSM) is typically
interrogated by a responder trigger
down the ROVs’ umbilical or a
narrow band tone signal. In some
situations, reverberation or multipath
of the tone interrogation can cause
interference problems. The new
WMT is Sonardyne’s first mini-sized
transponder, slightly larger than the
WSM and providing full two-way
Wideband interrogation and reply
which completely mitigates
interference from other users and to
other users.
For use on ROVs, the WMT includes
responder trigger, an integrated
Li-Ion battery pack that is charged
from the ROV’s power supply and
full RS232communications enabling
channel set up, power, gain etc. to
be changed from the surface.
An On/Off switch helps ensure the
battery pack is not discharged when
not in use. When an umbilical trigger
is not available, then full Wideband
mode provides excellent USBL
performance in a small, lightweight
form.
New remote transducers, either omni
or directional are available for both
the WMT and existing WSM range.
These make installation on an ROV
easier as the transducer can be
installed where there is good line-of-
sight.
The main body of the transponder,
the more expensive part, can then be
installed within the ROV frame where
it is well protected. Transducers can
then be easily replaced if damaged.
Key Features
• Full two-way Sonardyne
Wideband® interrogation and
reply – mitigates any interference
and multi-path issues
• Mini size – lightweight and small
• Responder mode
• Li-Ion battery pack
• Pressure sensor option
• Full RS232 control from the surface
• External On/Off switch
• Choice of standard cable lengths:
0.6m or 3.0m, custom lengths
available on request
• Choice of right angle or straight
connector style
• New, versatile and future-proof
design