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The output from the LAT
can be configured to provide multi-width and multi-pulse
electrical outputs to suit a wide range of requirements.
A rugged underwater connector ensures reliable activation.
The LAT is remotely controlled
from the surface using a low-cost deck unit supplied with
a dunking transducer and 10 metres of cable. The deck unit
is used to program the acoustic identity of the LAT from
several thousand available and then test the unit prior
to deployment. Once in the water, the deck unit can measure
ranges to the transponder and after sending a secure actuation
command, relocate the transponder.
LATs are also compatible
with Sonardyne's ROV-Homer and Homer-Pro target relocation
systems. Deployed at a point of interest, the LAT can be
interrogated, weeks or years later, to provide range and
direction guidance to a ROV pilot or diver wishing to home
back on to it
Technical Specifications
| Feature |
Type 8057 |
| Depth Rating |
500 Metres |
| Operating Frequency |
HF (35-50kHz) |
| Transmit Source Level |
185dB re 1µPa @1m |
| Receive Sensitivity |
<110dB re 1µPa |
| Number or Unique Addresses |
3609 (Field Program) |
| Switch On |
Continuously Operating (No On/Off switch) |
Battery Life Alkaline
Lithium
Lone Life Lithium |
18 months
34 months
52 months |
| Max Actuation Current |
120mA increasing with shorter pulse
widths
(Higher currents available) |
| Actuation Pulse Voltage |
10-15V DC |
| Actuation Pulse Width |
2 Second typical (other options available
upon request) |
| Actuation Pulses Per Command |
1 Typical (other options available
upon request) |
| Total Number of Actuations |
<100,000 (2 seconds @ 1mA) |
| Connector Type |
8 way Sub con MCBH8FAL/2-0 Bulkhead
Female |
| Mechanical Construction |
Plastic/ S/Steel / Aluminum Alloy (Anodised) |
| Dimensions (LxDia) |
63mm (2.4”) x 490mm (19.3”)
|
| Weight in Air |
1.7kg |
| Weight in Water |
0.4kg |
| Deck Unit |
Type 7967-000-02 (Includes Transducer
and 10 metres of cable) |
Features:-
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Provides acoustic
command and control of subsea electrical devices
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Configurable signal
output to suit customer electronics
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Depth rated to 500
Metres
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Up to 4½ years
deployment with Long-life Lithium battery pack
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Rugged, compact design
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Robust underwater
connector
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Thousands of secure
identities; field programmable with deck unit
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Compatible with ROV-Homer
and Homer-Pro relocation systems and Scout and Prospector
positioning system
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