GAPS - User Guide
2.2 Specifications of GAPSAcoustic Antenna
2.2.1 GENERAL CHARACTERISTICS
2.2.1.1 Positioning
Coverage 200° below the acoustic array
Acoustic Level 191 +/-3 dB ref. 1 µPa @ 1 m
Operating frequency 22 to 30 kHz MFSK chirp modulation technique
Heading / Roll / Pitch accuracy 0.01°
Receiving voltage sensitivity -206 dB re 1 V / µPa (± 3 dB) 56 µV / Pa (nominal)
Horizontal directivity Omnidirectional ± 2 dB at 100 kHz (Typical)
Vertical directivity 270° ± 2 dB at 50 kHz (Typical)
2.2.1.2 Operating /Environment
Power supply / Consumption
24 to 36 VDC / 35 W (45 W at starting up)
100-240 VAC
Operating temperature -5 °C to 35 °C
Storage temperature -40 °C to + 70 °C
Highest humidity 95% at 40°C
Vibration range from 1 to 55 Hz at 1 mm / 10 m/s2
Shock acceleration 15 m/s2 for 15 ms, ½ sinus
2.2.2 MECHANICAL SPECIFICATIONS
Housing Carbon
Weight in air / water 16 kg / -7 kg
Housing diameter x H (mm) 296 x 638 (fits in DN350 gate valves)
Array depth-rating
Up to 25 m for nominal accuracy
Up to 100 m non destruction
Maximum sailing speed 12 knots
MU-GAPS-AN-005-H - November 2019 25
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