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DSL-120A Specifications

General

Depth Capability: 6,000 meters
Depressor Weight: ~400 kg
Umbilibal: 40 meters, neutrally buoyant
Towfish Size: 3.3 m (L), 1.1 m (H), 0.7 m (W)
Towfish Weight: 390 kg in air (approx.)

Sidescan

Frequency: 120 KHz
Source Level: 218 dB
Horizontal Beamwidth: 1.7 degrees
Vertical Beamwidth: 50 degrees
Pulse Length: Selectable up to 350 microseconds
Receiver Gain: Selectable in 3 dB steps over 42 dB range
Range Scales: 100 m, 200 m, 500 m, 1 km

Standard Sensors

Attitude: Two-axis clinometer, 0.1 degree resolution
Heading: Endeco compass, 0.1 degree resolution
Pressure Depth: Bulk semiconductor strain gauge, <1 m resolution

Last updated: July 18, 2007