Initial issue
Issue Date 25/06/2010
User Manual: 8142/8182 Transceivers
02 Technical and Functional
Page
3of 10
The Sonardyne Wideband®2 Type 8182-000-01 6G® series of units operate as high data rate modems only.
They have almost the same functionality as the Type 8142 series but DO NOT present any bearing
information.
The transceiver is a complete digital signal processor controlled acoustic interrogator/receiver operating on a
command from the Data Fusion Engine (DFE). In other applications the transceiver can passively monitor
acoustic activity.
The main functions of the transceiver are as follows:
a)
Interpretation of commands from the DFE.
b)
Transmission of acoustic commands or transponder interrogation signals on any one of
Sonardyne Wideband®2 signals.
c)
Reception of transponder reply signals can be on any one of Sonardyne Wideband®2 signals.
d)
Decoding acoustic telemetry.
e)
Measurement of time and (bearing information, Type 8142 only) in the received transponder
reply.
f)
Transmission of range, (bearing, Type 8142 only) and telemetry data to the DFE.
The electronic components are as follows:
a)
Voltage regulation circuits.
b)
Analogue conditioning and digitisation.
c)
Digital signal processing module.
d)
Transmit circuit controlled by the processor.
e)
Communications module providing RS485 and Ethernet communications.
The transducer face has an array of ceramic receiver elements and a transmit element. They are recessed
into a high grade plastic and encased in polyurethane to form a strong smooth acoustic interface to the
water.
The electronics chassis is attached to a metal base plate at the transducer face assembly. A cylindrical
housing slides over the electronics chassis to mate with the face of the metal base plate and is secured with
six bolts. The housing is constructed in Aluminium Bronze to resist corrosion.
Summary of Contents for 8142-000-01
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