User manual FURUNO CH-300 OPERATORS MANUAL

[. . . ] DUAL-FREQUENCY SEARCHLIGHT SONAR CH-300 Your Local Agent/Dealer 9-52 Ashihara-cho, Nishinomiya 662-8580, JAPAN Telephone : Fax : 0798-65-2111 0798-65-4200 All rights reserved. Printed in Japan FIRST EDITION : APR. OME-13250 ( DAMI ) CH-300 *00015190000* *00015190000* *00015190000* *OME13250A00* *OME13250A00* *OME13250A00* SAFETY INSTRUCTIONS WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment. Immediately turn off the power at the switchboard if water leaks into the equipment or something is dropped in the equipment. Immediately turn off the power at the switchboard if the equipment is emitting smoke or fire. [. . . ] Note: The TILT control is inoperative when automatic tilt is active. 2-23 2. HORIZONTAL MODE 2. 15 Interpreting the Horizontal Display This section provides information necessary for interpreting the horizontal display. 2. 15. 1 How the horizontal mode picture is painted The wide sounding beam is emitted from the soundome at a certain tilt angle (see hatched area in the figure below). The information (target echoes) obtained by this beam is displayed in sectors of increments of 12° of the screen. Thus, all directions around the boat are sounded in 30 times of transmissions. Note: When the "FAST SCAN" is switched off, the equipment operates in a narrow sounding beam. Then, the echoes appear on a 6° sector in each transmission, so 60 transmissions are required to complete the full 360° picture (6°x 60=360°). However, since transmission power is concentrated into the narrow sounding beam, a superior detection range is obtained. Furthermore, since the bottom contour is painted distinctly, bottom fish may be more easily detected. Sounding Beam Screen Display Tilt: Train: 6°* Tilt: Sounding Beam When the narrow sounding beam (6°) is selected 60 transmissions are required to complete the full circle. *12° When high speed training is selected. How the horizontal mode picture is painted 2-24 2. HORIZONTAL MODE 2. 15. 2 Sample displays This section provides various examples of horizontal mode displays. The appearance of actual fish echoes will vary according to factors such as transmission frequency, gain and TVG settings, and bottom composition and contour. Bottom echoes When the tilt angle is changed, the bottom echo illustrated below will appear on the display. When the tilt is decrease (toward 0°), the bottom trace becomes winder and weaker. By observing the bottom condition on the display, the skipper can prevent net damage. (A) Flat bottom Tilt angle: 10° to 15° Decreased tilt angle Only half of vertical beam width captures the bottom. (B) Flat bottom Tilt angle: 20° or more (C) Sloping bottom Tilt angle: 20° or more Bottom is displayed narrower and in stronger colors when compared to (A). Shallow bottom is displayed in a strong color and with a short tail. Bottom The deeper, sloping bottom echo is displayed in a weak color and with a long tail. Bottom echoes 2-25 2. HORIZONTAL MODE Fish schools A fish school appears as a mass of echoes on the screen. The color of the mass shows the density of fish schools on the sonar beam. To find distribution and center point of a fish school, try several different tilt angles. (A) Sea surface fish Tilt angle: 0° to 10° Fish school Bottom echo not displayed because of decreased tilt angle. Sea surface reflections are present. Sea surface reflections (B) Midwater, bottom fish Tilt angle: 30° or more Fish echo which appears before bottom can be detected. Bottom Fish school Large midwater fish school is present. Tilt angle: 0° to 20° Fish echo which appears together with or after bottom can be detected. Fish school Bottom When the tilt angle is shallow, the reflection echo from bottom is weak and the fish echo which appears from bottom is easy to find. Fish schools 2-26 2. HORIZONTAL MODE Sea surface reflections To reduce sea surface reflections, set the tilt angle to 5° or higher, so the upper edge of the sonar beam does not hit the sea surface, or adjust TVG. When a decreased tilt angle is used, sea surface reflections cover a large area as illustrated below. Sea surface Tilt angle indication 10° Sea surface reflections Sea surface 10° Sea surface reflections Wake A wake produced by own ship or another ship can be a strong reflecting object when a decreased tilt angle is used. As the wake appears as a thick continuous line, it can be easily distinguishes from a fish school. A wake contains many air bubbles which attenuate ultrasonic energy, making it difficult to sound beyond the wake. Other ship Own ship Own ship's screw noise Wake produced by other ship Own ship's screw noise Own ship's wake (produced when own ship turned) Wake 2-27 2. HORIZONTAL MODE Sidelobe echo (false echo) An ultrasonic wave is emitted only in the direction set by the TILT control, however there are some emissions outside the main beam. The energy of the sidelobe is fairly weak but when the water is comparatively shallow and the bottom is rocky and hard, strong signals are detected by the sidelobe. [. . . ] COLOR (LOG, LINEAR, SQUARE, CUBE) CLUTTER (0, 1, 2, 3) HORZ SCAN RATE (1, 2, 3, 4) VERT SCAN RATE (1, 2, 3, 4) HORZ RANGE (x1, x2) ES menu TVG LEVEL (0-10, 4. 0) TVG DISTANCE (0-10, 4. 0) RES. COLOR (LOG, LINEAR, SQUARE, CUBE) CLUTTER (0, 1, 2, 3) A-SCOPE (OFF, ON) DEFAULT SETTINGS SHOWN IN BOLD ITALIC. (When SHORT-CUT KEY is selected at SYSTEM SETTING 1 menu. ) SHORT-CUT menu KEY1 (VER SEARCH, VOLUME, DEL TRACK, AUTO TILT, BKGD SIG LEVEL, CLUTTER, RES. Default setting: DEL TRACK) PRESET menu (Default setting) CUSTOM1 (MODE: HORIZONTAL EXPANSION, FREQ: HI, SECTOR: 240°, TRAIN: 0°, RANGE (m): 200, TILT: 30°) CUSTOM2 (MODE: HORIZONTAL, FREQ: HIGH, SECTOR: 360° , TRAIN: 0°, RANGE (m): 200, TILT: 30°) CUSTOM3 (MODE: VERTICAL, FREQ: HIGH, SECTOR: 180°, TRAIN: 90°, RANGE (m): 200, TILT: 90°) (CONTINUED ON NEXT PAGE) AP-1 MENU TREE (CONTINUED FROM PREVIOUS PAGE) SYSTEM menu SYSTEM SETTING (See below. ) RANGE-SONAR MODE (all default ranges) m: 20, 40, 60, 80, 100, 120, 160, 200, 250, 300, 400, 500, 600, 800, 1200 ft: 50, 100, 200, 300, 400, 500, 600, 700, 800, 1000, 1200, 1500, 2000, 3000, 4000 fa: 10, 20, 40, 60, 80, 100, 120, 140, 160, 200, 250, 300, 400, 500, 700 P/B, Hiro: 10, 20, 40, 60, 80, 100, 120, 160, 200, 250, 300, 400, 500, 600, 800 RANGE-VER MODE (all default ranges) m: 10, 20, 30, 40, 60, 80, 100, 120, 160, 200, 250, 300, 400, 500, 600 ft: 30, 60, 90, 120, 150, 200, 250, 300, 400, 500, 600, 800, 1000, 1500, 2000 fa, P/B, Hiro: 10, 20, 30, 40, 50, 60, 80, 100, 120, 140, 160, 200, 250, 300, 400 RANGE-E/S MODE (all default ranges) m: 10, 20, 30, 40, 60, 80, 100, 120, 160, 200, 250, 300, 400, 500, 600 ft: 30, 60, 90, 120, 150, 200, 250, 300, 400, 500, 600, 800, 1000, 1500, 2000 fa, P/B, Hiro: 10, 20, 30, 40, 50, 60, 80, 100, 120, 140, 160, 200, 250, 300, 400 RANGE-TRACK MODE (all default ranges) m: 500, 1000, 2000, 4000, 8000 ft: 1000, 2000, 5000, 10, 000, 20, 000 fa, P/B, Hiro: 200, 500, 1000, 2000, 4000 COLOR PALETTE (Adjusts color of echoes, text and background. ) LANGUAGE (JAPANESE, ENGLISH, FRANCAIS, ESPANOL, ITALIANO, PORTUGUES DANSK, NORSK, SVENSK, THAI) SYSTEM BACKUP (NO, YES) LOAD BACKUP DATA (NO, YES) HEADING OFFSET. DRAFT OFFSET (-180°, +180°, 0; 0 - 60 (m), 0) ADJ MOTION SENSOR (ROLL ANGLE: -10° - +10°, 0; PITCH ANGLE: -10° - +10°, 0) TX FREQ ADJUST FREQ SHIFT(L) 60 kHz, 57-63; 60 or 85 kHz: 85-95; 85 FREQ SHIFT(H) 153 kHz: 147-163; 153 or 215 kHz: 205-225; 215 TEST (Checks equipment for proper operation. ) TEST PATTERN (Displays series of test patterns. ) DEMO MODE (OFF, ON) DEFAULT (NO, YES) SYSTEM SETTING 1 POSITION (SHIP'S L/L, SHIP'S LOP, CURSOR L/L) TRACK (OFF, ON) CURRENT DATA (OFF, FLOW FROM, FLOW TO) HEADING INDICATION (TRUE, AZ) NORTH MARK (OFF, ON) CSE DATA (NAV, GYRO) NAV BAUDRATE (4800, 9600, 19200, 38400 (bps)) NAV DATA (GPS, LoranC, LoranA, DR, DECCA, OTHERS) TVG CORRECTION (OFF, 1/2, 1/1) UNIT (m, ft, fa, HIRO, P/B) TEMP (°C, °F) TARGET L/L (OFF, ON) CUSTOM KEY (PRESET KEY, SHORT-CUT KEY) ETA MARK (OFF, 10sec, 30sec, 1min, 3min, 6min) SYSTEM SETTING 2 GAIN SETTING PROTECT (OFF, ON) HORZ/HISTORY (OFF, ON) HORZ/VERT (OFF, ON) HORZ/VERT ZOOM (OFF, ON) HORZ/PLOTTER (OFF, ON) EMPHASIS MODE (OFF, NORMAL, RED) STABILIZER (OFF, ON) AUTO RETRACTION (OFF, 5-15kt(ON)) SPEED ALARM/MESSAGE (OFF, ON) SWEEP INDICATOR (DOT, LINE) DEFAULT SETTING (NO, YES) AP-2 FURUNO DUAL-FREQUENCY SEARCHLIGHT SONAR CH-300 CH-300 1. GENERAL 10. 4-inch color TFT LCD (or external monitor) Dual frequency, 60/153 kHz or 85/215 kHz 1. 0 kW 1. 1 Display System 1. 2 Transmit Frequency 1. 3 Output Power 1. 4 Range (default setting) Rng 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Meter Horz 20 40 60 80 100 120 160 200 250 300 400 500 600 800 1200 Vert 10 20 30 40 60 80 100 120 160 200 250 300 400 500 600 ES 10 20 30 40 60 80 100 120 160 200 250 300 400 500 600 Horz 50 100 200 300 400 500 600 700 800 1000 1200 1500 2000 3000 4000 Feet Vert 30 60 90 120 150 200 250 300 400 500 600 800 1000 1500 2000 ES 30 60 90 120 150 200 250 300 400 500 600 800 1000 1500 2000 Horz 10 20 40 60 80 100 120 140 160 200 250 300 400 500 700 Fathom Vert 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 ES 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 Horz 10 20 40 60 80 100 120 160 200 250 300 400 500 600 800 P/B Vert 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 ES 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 Horz 10 20 40 60 80 100 120 160 200 250 300 400 500 600 800 Hiro Vert 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 ES 10 20 30 40 50 60 80 100 120 140 160 200 250 300 400 1. 5 Minimum and maximum ranges Horizontal mode Meter Min. 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