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Datasheet
Compatt Mk4 MF Directional (Discontinued)
Description
The Computing and Telemeter
Transponder (Compatt) is a
microcomputer controlled subsea
transponder used for acoustic
navigation and positioning. The
Medium Frequency (MF, 18-36 kHz)
system is suited to a wide range of
tasks such as underwater
measurement, remote control and
monitoring.
Key Features
•
Sequential mode operation with 15
individual channel frequencies
•
12 channel receiver for high speed
positional updates
•
Allows up to 945 individually
addressable Compatt to be used in
close proximity
•
HPR option allows Compatt to be
used with Simrad HPR systems
•
Programmable address code
The Type 7806 Mk4 Compatt is one
of the Medium Frequency versions of
Sonardyne’s fourth generation family
of transponders built to complement
the existing range of Long Baseline
products.
•
Conventional Enable and Disable
commands for normal transponder
operation
•
Advanced telemetry facility replies
to all commands with Compatt
address, command executed and
error-checking
•
Direct measurement of baselines
between Compatt improves array
calibration accuracy
•
Baseline measurement to15 cm
•
Measurement of temp. and depth
permits accurate evaluation of sea-
bed sound velocity
•
Battery checks and time/date
facility record remaining battery
capacity and time since last charge
•
Cycle mode permits up to eight
preset commands to be executed
on receipt of one command
•
Auto-disable at 90% of battery
packs usage
The Type 7806 has a Semi-
Directional transducer directing a
high source level upwards to
overcome high noise levels on
surface vessels, especially vessels
using thrusters for Dynamic
Positioning. The transducer maintains
a good source level and sensitivity in
the horizontal direction to ensure
reliable inter-Compatt ranging for
array calibration. The Type 7806 is
a direct replacement for the earlier
Type 7805 Compatt, but has
improved acoustic performance
across the whole MF frequency
band.
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