User manual RAYMARINE RAYTECH RNS V6.1

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Manual abstract: user guide RAYMARINE RAYTECH RNS V6.1

Detailed instructions for use are in the User's Guide.

[. . . ] Raytech RNS V6. 1 User's Guide Document Number: 81260_2 October 2008 Trademarks and registered trademarks Autohelm, HSB, Raymarine, RayTech, Sail Pilot, SeaTalk and Sportpilot are registered trademarks of Raymarine Limited. Apelco is a registered trademark of Raymarine Holdings Limited (Registered in all major marketing territories). AST, Autoadapt, Auto GST, Autoseastate, Autotrim, Bidata, Marine Intelligence, Maxiview, On Board, Raychart, Raynav, Raypilot, Raystar, ST40, ST60, Seaclutter, Smart Route, Tridata and Waypoint Navigation are trademarks of Raymarine Limited. NVIDIA and GeForce are trademarks or registered trademarks of NVIDIA Corp. [. . . ] Gain setting changes are kept at system power-off. Gain presets There are four preset gain modes to give you the best picture in different circumstances. This setting takes account of land clutter so that smaller targets, like navigation buoys, are not lost. Coastal accounts for the slightly higher levels of sea clutter you might encounter out of harbor and adjusts the radar display accordingly. Offshore automatically adjusts for high levels of sea clutter. Gain The gain control makes the radar picture clearer by changing the sensitivity of radar reception. 94 · For long ranges - select a sensitivity level that gives a slight speckle in the background. Be careful not to set the gain too low, or you may miss weak or small targets. For shorter ranges - reduce the gain slightly to reduce the speckle and therefore improve target definition. RayTech RNS V6. 1 - Users Guide Rain clutter Radar detects echoes from rain or snow. The strength of these echoes depends upon the altitude, range, density and size of the snow flakes or rain droplets and appear on screen as countless small echoes continuously changing size, intensity and position. Turning the RAIN clutter function on suppresses the bulk effect of rain returns from around your boat, so that recognizing other objects is easier. Once Rain clutter is set to ON, use either a left mouse click for small changes (+/-1) or a right mouse click for larger changes (+/-10). · Note: If the gain settings are manually changed you should re-check it every time you change the range scale. Color Gain The Color Gain control adjusts the intensity (color) of displayed targets, but does not significantly adjust the number of targets displayed. Increasing the color Gain will cause more targets to be displayed in the same color. This may avoid some confusion as to whether a return on the screen is a target or background noise. Reducing the color gain may give better target detail, target discrimination and target detection within clutter. Sea clutter Radar echoes from waves around your boat can clutter the center of the radar picture, making it difficult to detect real targets (see page 85). Adjusting the sea mode will reduce this clutter for up to 5 nautical miles (depending on wave and sea conditions) from your boat. This reduces sea echoes to intermittent small dots, while small targets remain visible and persistent. The sea Radar colors Radar returns/targets are represented as colors, in the default palette the strongest returns are red with weaker returns being yellow, noise or clutter is shown as aqua or blue. Return Color Red Yellow Aqua/Blue Element displayed Strongest target returns Weaker target returns Noise or clutter clutter curve under Scanner Set up will effect the effectiveness of this control (see Sea clutter curve on page 84). 11. 8 Super HD adjustments Note: Only available if a `Super HD' radar is fitted to your vessel. You can generally use the default AUTO settings for best results, but two manual controls allow you to explore Super HD's capabilities. Antenna boost This scales the effective antenna size. At 95, the effective antenna size is doubled. Chapter 11: Using the Radar (Digital) Increasing effective antenna size has the effect of separating targets that appear merged at lower settings. In particular, if you are in a harbor or close to land, you may see more detail than is useful. For that reason, the AUTO settings for Harbor and Coastal modes provide lower scale factors of about 30% and 60%. 95 Turning interference rejection off altogether allows you to detect the presence of other radars in the vicinity. Toggle the setting to Off on the Int Reject softkey. Power boost This adjusts effective transmit power. Increasing power has the effect of making targets more distinct from noise. For maximum benefit, reduce power boost to prevent saturation of strong targets. [. . . ] You can connect RayTech using any Ockam RS-232 interface, however for optimum reliability of data transfer the Model 050D is recommended. Connect the cables as follows: Cable color Yellow (Rx) Black (SGnd) Green (Tx) Black (SGnd) Ockam 050D pin Pin 4 Not used Pin 2 Pin1 Connecting to KVH Instruments RayTech connects to KVH instruments via the KVH NMEA box or Race box interface devices. Connecting via the Race box has the advantage of automatically sending RayTech data back to the KVH system displays. Using the Race box also requires you to use the NMEA box, because the Race box does not propagate all of the NMEA data. [. . . ]

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