Wide Band Transceiver (Wbt) Description - Simrad ES80 Reference Manual

Simrad ES80 Reference Manual

Wide Band Transceiver (WBT) description

The ES80 Wide Band Transceiver (WBT) is provided to transmit acoustic energy through
water. This transmission and reception are commonly referred to as a ping. After each
transmission, the transceiver receives the echoes from the targets in the water and/or the
seabed. These echoes are filtered and amplified and then converted into digital format.
The Wide Band Transceiver (WBT) comprises a rugged
box providing all necessary transmitter and receiver
electronics. The receiver is designed for low noise,
and it can handle input signals spanning a very large
instantaneous dynamic amplitude range. All targets are
correctly measured. The transceiver operates within a
large frequency band, and supports single frequencies,
frequency sweep (chirp) and user defined wave forms.
The Wide Band Transceiver (WBT) is designed for applications where performance
is the top priority. It has four 500 W channels that can either work independently
with single beam transducers, or together with a split beam transducer. The design is
optimized for applications where power consumption and physical size is not critical.
A high quality Ethernet cable connects the Wide Band Transceiver (WBT) to the
Processor Unit. The distance between the Processor Unit and the transceiver can be
extended up to maximum 70 meters. If a longer cable is required, cut it in half, and insert
an Ethernet switch to provide buffer amplification.
Note
If more than one Wide Band Transceiver (WBT) is used, a small high capacity Ethernet
switch is required to connect the transceivers to the Processor Unit.
The Wide Band Transceiver (WBT) requires an external power supply offering 12 to 15
Vdc, minimum 5 A. A suitable power supply is provided with the delivery.
Tip
The ES80 also supports the use of General Purpose Transceiver (GPT) transceivers.
In order to use General Purpose Transceiver (GPT) transceivers, minimum one Wide
Band Transceiver (WBT) must be installed first to handle the software license for the
ES80 system.
Related topics
System description, page 17
System diagram, page 20
Technical specifications
Weight and outline dimensions, page 477
Power requirements, page 479
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