SECTION 1:
OVERVIEW
1-6
3100-P PORTABLE SUB-BOTTOM
0004802_REV_F
1.2.2
SB-424 and SB-216S Tow Vehicles
The SB-424 and SB-512i Tow Vehicles are each designed to operate over a specific frequency range, and
as lower operating frequencies generally require longer hydrophone arrays and larger transducers, the
vehicles differ primarily in size and weight.
The SB-424 Tow Vehicle, which is the smaller of the two, operates over a frequency range of 4–24 kHz,
while the SB-216S operates at 2–16 kHz. Both vehicles are displayed in
. The two vehicles are
hydrodynamically stable, with the transducers and hydrophone arrays mounted under an acoustic baffle
to reject downward traveling multiple echoes. These components, along with "spider" cable harnesses
and a preamplifier, are enclosed in a two-piece fiberglass shell that is fitted with stabilizing fins and lead
ballast.
A hinged U-framed tow bridle is used for towing, and the tow point location can be adjusted to
accommodate different towing speeds and depths. The tow vehicles are each shipped in a wooden crate.
Figure 1-3: SB-424 and SB-216S Tow Vehicles
SB-424 Tow Vehicle
SB-216S Tow Vehicle
Summary of Contents for Model 3100P Sub-bottom Sonar System
Page 24: ......
Page 29: ...2 5 Figure 2 4 Tiger Board Set SIBU aka Sonar Interface Board 0011637...
Page 33: ...2 9 Figure 2 6 SB 424 Towfish Outline Drawing...
Page 60: ...SECTION 5 TROUBLESHOOTING 5 4 Figure 5 1 35M Tow Cable Diagram 0002899...
Page 61: ...5 5 Figure 5 2 3100 P Topside Interconnect 0004674...
Page 62: ...SECTION 5 TROUBLESHOOTING 5 6 Figure 5 3 Wiring Diagram Spider Box SB 424 Tow Vehicle...
Page 63: ...5 7 Figure 5 4 Wiring Diagram SB 424 Tow Vehicle...
Page 64: ...SECTION 5 TROUBLESHOOTING 5 8 Figure 5 5 Wiring Diagram Spider Box SB 216S Tow Vehicle...
Page 65: ...5 9 Figure 5 6 Wiring Diagram SB 216S Tow Vehicle...
