User manual NORTHSTAR 4 KW RADAR INSTALLATION

[. . . ] Northstar 4 kW Radar Installation Manual www. northstarnav. com FCC Statement Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a normal installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] The radar processor supports this feature through Pin 12 on the NMEA/Comms port. If you want the radar processor to power ON automatically whenever power is applied, leave Pin 10 and Pin 12 of the NMEA/Comms connector as No Connect. Alternatively, if you want the radar to be powered ON only when vessel's engines are running, Pin 12 (active high) must be driven by the vessel's ignition key. 28 Northstar 4 kW Radar Installation Manual 4. 6. 2 Connect an 8000i network cable (NS00481X) Connect the 8000i network cable (NS00481X) ONLY if you're connecting the radar system to a Northstar 8000i system. Push one end of the 8000i network cable into the NETWORK connector on the radar processor. If the NMEA/COMMS connector on the radar processor is not used, leave the sealing cap in place. 4. 6. 3 Connect the optional NMEA compass for an 8000i The NMEA compass may be directly connected to the radar processor through the NMEA/COMMS port. Compass data is appended to the radar data by the radar processor and then broadcast over the network to the 8000i display and other devices. This enables more precise radar chart overlay and target tracking (MARPA) than is possible by compass connection to other points in the network. The NMEA compass cable is not supplied but the pinout of the NMEA/COMMS port is shown for information: Pin 3 4 5 6 9 11 Function NMEA Tx+ data NMEA Ground NMEA Rx- data NMEA Rx+ data Shield 12 V Compass power (100 mA max) It is recommended that a single compass data source is used for the 8000i network. To achieve this, the NMEA compass data must be fed to other devices on the 8000i network using the spare data channels from the compass (if available) or the NMEA data splitter. See the "Northstar 8000i System Setup Manual" for more information. 4. 3. 6. 1 Configure the optional NMEA compass The compass must be NMEA compliant and configured as follows: 10 Hz update rate 4800 baud The compass must be able to supply the NMEA 0183 HDT, HDM, and HTG heading sentences (all other sentence types will be ignored). (If this is not possible, power the compass using a separate 12 V source. ) 4. 7 Connect the power cable The power cable to the radar processor is NOT supplied for either the 6000i or 6100i system or the 8000i system. Power must be supplied through a fuse/breaker element located at the power source end of the power cable. The power cable and fuse requirements are shown in the table. Northstar 4 kW Radar Installation Manual 29 Scanner 2 kW 4 kW 6 kW 10 kW 25 kW Fuse/Circuit breaker Maximum length of rating power cable Power cable size 5A 10 A 10 A 15 A 15 A 33 ft (10 m) 26 ft (8 m) 26 ft (8 m) 26 ft (8 m) 26 ft (8 m) 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG Typically the fuse /breaker would be located in a fuse/breaker box with the fuses/breakers for other devices. The radar processor must have it's own exclusive fuse/circuit breaker. Strip away approximately 0. 4" (10 mm) of the shielding at the end of the power cable, and then identify the positive wire and the negative wire. Unscrew the small holding screw from the positive power cable input connector (identified by the + sign) on the radar processor. Insert the bare ends of the positive wire into the positive power cable input connector to make a connection. Repeat this process to connect the negative wire to the negative power cable input connector (identified by the ­ sign). 4. 8 Connect the ground wire The radar processor has a Chassis Earth connection stud located on the far right hand side of the unit. The Chassis Earth is DC isolated from power (­ve) to eliminate the risk of galvanic corrosion. If you are installing the radar processor on a vessel with a metal hull, connect the radar processor Chassis Earth to the hull at the closest possible location, using 12 AWG wire (or thicker): The eyelets must be crimped or soldered at both locations (A) and the method of connection to the vessel's hull is shown at (B). If you are installing the radar processor on a vessel with a non-metallic hull, connect the radar processor Chassis Earth to the vessel's ground network. If a vessel's ground network is not available, leave the radar processor Chassis Earth unconnected. 30 Northstar 4 kW Radar Installation Manual 4. 9 Radar system checklist When you've finished the wiring, visually check that: each component is securely mounted and able to withstand rough sea conditions. [. . . ] If the radar is causing the noise interference, check that: the affected piece of equipment and/or the antenna is not located within the radar beam. (See the section "Install the radar" for information about the optimum installation height and the radar beam width) the cables supplied with the equipment have been installed correctly. In particular, check for loose connections and loose or missing shield meshwork at the cable ends the covers of the scanner and radar processor box are securely screwed and/or fastened in place, so that the internal shielding is effective each piece of radio equipment is grounded to the closest ground location, and that other devices are grounded to the closest ground location on the hull the radar cabling has not been bundled with the VHF radio cabling and/or with the direction finder cabling. The radar cabling must always be separate. Northstar 4 kW Radar Installation Manual 41 8. 5 Make sure the power is present and correctly wired Check the in-line fuse. [. . . ]