User manual NORTHSTAR 10 KW RADAR

[. . . ] 1 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. [. . . ] 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. 12. 11. 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). 36 Northstar 25 kW Radar Installation Manual Ideally, the compass should draw less than 100 mA. (If this is not possible, power the compass using a separate 12 V source. ) 12. 12 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. Check the system specifications section for the recommended DC input voltage. The power cable and fuse requirements are shown in the table. 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). 12. 13 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): Northstar 25 kW Radar Installation Manual 37 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. 12. 14 Radar system checklist When you've finished the wiring, visually check that: each component is securely mounted and able to withstand rough sea conditions. Now you're ready to set up the radar with the Northstar system that you're using. 13 Set up the radar with the Northstar 8000i system Setting up the radar with the Northstar 8000i is described in the Northstar 8000i System installation documentation for your display processor. 38 Northstar 25 kW Radar Installation Manual 14 14. 1 Set up the radar with the Northstar 6000i or 6100i Turn the radar on and off 14. 1. 1 Before you turn on the radar for the first time To extend magnetron lifetime, you're recommended to leave the radar in Standby mode for 30 minutes when activating the radar for the VERY FIRST time. (When the radar is in Standby mode, it's NOT transmitting but it is powered up ­ this allows the magnetron heater to stabilize). If you're using the radar with the 6000i or 6100i, press CLR (NOT ENT) the VERY FIRST time when the radar transmit activation message appears. The radar countdown timer will appear ­ typically 90 seconds on lower powered radars ­ then the radar will automatically start transmitting. 14. 1. 2 Turn the radar on IMPORTANT: Do not use the navigator's Demo Mode when the radar is switched on. [. . . ] If the radar is causing the noise interference, check that: Northstar 25 kW Radar Installation Manual 47 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. 16. 5 Make sure the power is present and correctly wired Check the in-line fuse. [. . . ]