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(3) Transceiver
Transmitter:
Receiver:
(4) Beamwidth (-3 dB) and Tilt Angle
TX Beamwidth:
RX Beamwidth:
Tilt Angle:
2. DISPLAY
(1) Picture display
(2) Color
(3) Display mode
(4) Display Marks
(5) Alphanumeric Data
SP-2
High power MOS FET amplifier with 10-step power reduction switch
Low noise superheterodyne, continuously scanning beam forming, TVG,
AGC, signal/processing, interference rejecter, horizontal vertical beam
switching.
360°(horizontal) x 10°to 16°(vertical)
9°to 18°(horizontal) x 13°to 16°(vertical)
-5°(upward) to 60°(downward), continuous.
NOTE: Beamwidth depends on transmitter frequency.
PPI display on 15 inch non-glare, high-resolution color CRT
(Commercially produced monitor available)
16 colors (sonar picture), 4 colors (marks)
a) Normal Mode (*with or without data display)
b) Off-center
c) *True motion
d) Echo sounder combination (normal plus echo sounder)
e) Audio combination
f) Port/starboard combination
g) Horizontal slice combination
Own ship mark, heading mark, range rings, range/bearing mark, trackball
mark, event mark, net shooting mark, fish mark, estimate mark, bearing
scale, *north mark, *ship's track, *current mark, *net sonde mark
Sonar picture (range, tilt angle, gain)
Trackball mark data (slant range, horizontal range, depth, bearing)
Event mark data (horizontal range, depth, first event marked depth, bearing)
Fish mark data (*distance moved, *direction and *speed between two latest
fish marks)
Estimate mark data (estimation of fish volume by echo strength)
Net shooting data (new setting appears in larger characters for 5 seconds
when changed)
*Current data (current speed, direction, layer, depth)
*Navigation data (ship's speed, heading, water depth, water temperature)
*Own ship's position (latitude/longtitude)
Net sonde data *(net depth, distance to seabed, water temperature, sinking
speed of net)
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