Edgetech X Star 3100-P Sub-Bottom Profiling System – Available for rental, hire and ex-rental purchase from Ashtead Technology.
The 3100-P is EdgeTech’s portable sub-bottom profiling system. It uses Full Spectrum (“chirp”) pulses to create high definition image slices of sub-bottom structure below the bottom. It can be used in rivers, lakes, ponds, and in the ocean. The towfish use special designed transmitters with low Q- wide band characteristics best suited for “chirp” transmissions. Two (2) multi element line array hydro-phones are installed in the tow vehicle to reduce acoustic scattering from the sides. This results in a narrower across/along track beam pattern. A linear power amplifier is used to generate clean, harmonic free transmissions. A portable splash resistant topside case contains the amplifier and other Full Spectrum electronics. A laptop computer running EdgeTech’s DISCOVER sub-bottom software is where the sonar data is displayed and stored. A number of industry standard thermal gray shade printers are supported.
|Towfish Model SB-424||Frequency Range: 4 - 24 kHz|
|Pulses (User selected): 4-24 kHz, 4-20 kHz, 4-16 kHz|
|Vertical Resolution: 4 cm / 4-24 kHz;6 cm / 4-20 kHz; 8 cm / 4-16 kHz|
|Penetration (typical) in coarse calcareous sand (meters): 2 ; in clay (meters): 40|
|Beam Width (depends on center frequency)||16° / 4-24 kHz 19° / 4-20 kHz 23° / 4-16 kHz|
|16° / 4-24 kHz 19° / 4-20 kHz 23° / 4-16 kHz||3 shielded twisted pairs (5 used)|
|Maximum Towfish Operating Depth||300 meters (1,000 feet)|
|Optimum Tow Height||3 to 5 meters above sea floor|
|Tow Speed||3-4 knots optimal, 7 knots maximum safe operational|
|77 L x 50 W x 34 H cm||45 kg|