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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: 360 (horizontal) x 13 to 16 (vertical)
RX Beamwidth: 9 to 18 (horizontal) x 13 to 16 (vertical)
Tilt Angle: -5 (upward) to 60 (downward), continuous.
NOTE: Beamwidth depends on transmitter frequency.
2. DISPLAY
(1) Picture display CSH-23F: PPI display on 15 inch non-glare, high-resolution
color CRT (Commercially produced monitor available)
CSH-24F: PPI display on 21 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) Port/starboard combination
f) Horizontal slice combination
g) Target slice
h) True motion*
(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
lock 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),