Furuno CSH-84 - Manual (Page 106)

SP-2
Output 2 W
Frequency 1.1 kHz with reverberation effect
(3) Transceiver
Transmitter High power MOS FET amplifier with 10-step power reduction
switch
Receiver Low noise superheterodyne, continuously scanning beam form-
ing, TVG, AGC, signal/processing, interference rejecter, hori-
zontal vertical beam switching.
(4) Beamwidth (-3 dB) and Tilt Angle
TX Beamwidth 360
°
(horizontal) x 12
°
(vertical)
RX Beamwidth 11
°
(horizontal) x 12
°
(vertical)
Tilt Angle -5
°
(upward) to 60
°
(downward), continuous.
NOTE: Beamwidth depends on transmitter frequency.
2. DISPLAY
(1) Picture Display CSH-83: PPI display on 15 inch non-glare, high-resolution color
CRT
CSH-84: 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, esti-
mate 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 (hori-
zontal 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* be-
tween turning on and off of net shooting mark), Setting change