Lowrance HALO20 Radar HALO 20 20 and 24 Installation Manual - Page 20

3 Setup and configuration Setup and configuration of the Halo Radar has been simplified compared to traditional pulse radars. There is no zero range adjustment (time delay), no warm up time and no burn in required. Make the following settings before use. Refer to the documentation supplied with your display unit to locate the settings to be adjusted. Adjust bearing alignment Aligns the heading marker on the screen with the center line of the vessel. This ensures that MARPA targets and bearings taken with the EBL are displayed accurately. Antenna height adjustment The antenna height is the height of the antenna above the water line. Ensure the antenna height is set correctly, as it affects the sea clutter function. Do not set the height to zero. Sector blanking Used to stop the radar transmitting in the direction of structures that could cause unwanted reflections or interference to appear on the radar image. Four sectors can be set, the bearing of which is measured from the bow of the vessel to the center line of the sector. Sidelobe suppression ¼ Note: This control should only be adjusted by experienced radar users. Target loss in harbor environments may occur if this control is not adjusted correctly. By default this control is set to Auto. Increase the suppression if there are false targets appearing as arcs radiating from either side of an actual target (typically large structures such as steel ships, container wharves, and large buildings). Halo light ¼ Note: Only available for Halo20+ and Halo24 Radars. Determines the light level of the LED accent light. ! Warning: Halo Radar's lighting may not be approved for use in your boating location. Please check your local boating regulations before turning the blue accent lights ON. 20 | Setup and configuration | Halo20, 20+ and 24 Dome Radars Installation Manual