(3) Transceiver |
|
Transmitter: | High power MOS FET amplifier with |
Receiver: | Low noise superheterodyne, continuously scanning beam forming, |
| TVG, AGC, signal/processing, interference rejecter, horizontal vertical |
| beam switching. |
(4)Beamwidth
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 |
(2) | Color | 16 colors (sonar picture), 4 colors (marks) |
(3) | Display mode | a) Normal Mode (with or without data display) |
|
| b) |
|
| 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)
