Characteristics

Power supply :

High 80% output from battery accumulators (250 W/h)

VHF :

Acoustic data transmission by means of 1 W VHF transmitter Transmission of the positioning by means of 5 W VHF transmitter, which can be extended to 25 W Three band antenna (GPS, transmission of acoustic data and remote reception of commands)

Acoustic transmission level :

Maximum 160 dB

Acoustic reception :

Very low noise technology (-155 dB /√ Hertz). Dynamic 85 dB Elimination of low frequency mechanical noise by means of an anti-swell system. This system is made of a dumper and an elastic suspension effective up to MER 3 and for immersions up to 300 m

Signal treatment :

Compensation of the non linear transfer function of the emitting and receiving hydrophones FIR and IIR numerical filtering 60 kHz acquisition board based on a DSP with floating point, 48 MHz watch, 25 Mflps, 125 MIPS, Pipe Line architecture

Structure :

Glass fibre polyester Resists shocks equivalent to 60 cm high 1 Bar waterproof

SYRABA
Aeronaval buoy

The SYRABA buoy is a comparison tool which means the buoys  can be evaluated, qualified , and validated at sea with regard to reference signals.

The huge know-how of DEGREANE HORIZON in the marine and underwater systems has been used to develop this product :

• low frequency acoustics
• VHF transmission
• GPS localisation
• Embedded electronics specific for maritime environment

Functions

• The acquisition of low frequency marine signals is done by means of a hydrophone which is compensated by an anti-swell system. The transmission of the signal is done after real time data processing towards an operating system by means of radio link.
• It functions in a scale going from some Hertz up to several kHz
• Equipped with a GPS system, it communicates its position cyclically.