UC&NL products documentation

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RWLT GIB - Navigation buoy
Device specification

KEY FEATURES

DESCRIPTION

Navigation buoy RWLT GIB of the system RWLT as part of a set of four such devices forms a floating long navigation base, with the support of which positioning of the pinger RWLT Pinger or underwater wireless telephone RedPhone is provided.
The device is made in the form of a plastic cylinder with dimensions Ф150х600 mm with a receiving hydroacoustic antenna on a cable.

The device has positive buoyancy and a load-carrying eye for anchor attachment.

TECHNICAL SPECIFICATIONS

PARAMETER VALUE
DIMENSIONS1 (Ф х h) 146 x 597 mm
WEIGHT (dry) 4.8 kg
POSITIVE BUOYANCY 1 kg
FREQUENCY RANGE 10 .. 30 kHz
BATTERY LIFE2 up to 12 hours
MAX. RELATIVE VELOCITY +/- 1.8 m/s
WORKING TEMPERATURE RANGE -10 .. 50 °С
MAX. ACOUSTIC RANGE3 3000 m
MAX. ALLOWED DISTANCE TO OTHER BUOYS OF THE SET4,5 1500 m
MIN. ALLOWED DISTANCE TO OTHER BUOYS OF THE SET5 30 m
REFERENCE ELLIPSOID WGS-84
BUILT-IN BATTERY TYPE Lead-acid
ACOUSTIC ANTENNA CABLE LENGTH 1.5 m
BUILT-IN RF UNIT TYPE GFSK, 433 MHz
MAX. BUILT-IN RF UNIT OUTPUT POWER 100 mW
MAX. RF RANGE6 1000 m

1 Without taking into account the height of the radio antenna (180 mm) and the acoustic receiving antenna on a cable 1.5 m long.
2 With a new, fully charged battery, at an ambient temperature of 20 °C.
3 A parameter that determines the maximum range at which signal reception is possible, based on electroacoustic parameters of the transmitter and receiver, spatial decrease in the intensity of sound energy, attenuation in the environment and the level of hydroacoustic noise.
4Buoys should be located on the surface of the water in a convex polygon so that the distance from each buoy to any other did not exceed the indicated value.
5 Pinger’s immersion depth should not exceed the size of the navigation base.
6 Achieved in the absence of interference, in an open area.