SP-2
(3) Transceiver
Transmitter:
High power MOS FET amplifier with 10-step power reduction switch
Receiver:
Low noise superheterodyne, continuously scanning beam forming,
TVG, AGC, signal/processing, interference rejecter, horizontal vertical
beam switching.
(4) Beamwidth (-3 dB) and Tilt Angle
TX Beamwidth:
180º (horizontal) x 6º to 11º (Vertical)
RX Beamwidth:
5º to 10º (horizontal) x 6º to 11º (Vertical)
Tilt Angle:
0º (horizontal) to 90º (vertical), continuous.
NOTE: Beamwidth depends on transmitter frequency.
2. Display
(1) Picture display
PPI display on 15 inch non-glare, high-resolution color CRT
(2) Color
16 colors (sonar picture), 4 colors (marks)
(3) Display mode
a) Normal Mode (with or without data display)
b) Off-center
c) Echo sounder combination (normal plus echo sounder)
d) Audio combination
e) Horizontal slice combination
(4) Display Marks
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*, target luck mark*
(5) Alphanumeric Data
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 (time and distance run* between turning on and off
of net shooting mark)
Setting change 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 tempera
ture)
Summary of Contents for MODEL CSH-73
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Page 102: ...IN 2 ...