Raymarine Raydata Installation And Operating Handbook
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Contents
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Chapter 4: Setup and Calibration 31Sounder ControlThe Sounder Control menu allows you to turn the internal depthsounder transmitter off, without switching off the RayData. You maywish to do this if it would otherwise interfere with other equipment, suchas a fish-finder. Use the Setup menu to turn the sounder on again whenrequired.If you set the RayData Depth Mode to Repeater (see below), thesounder is turned off automatically.Response LevelThe Response Level settings control the update rate of the display, fordepth, speed, temperature or heading inputs. Select a value in therange 1 - 15 seconds. Use a larger response level value to see rapidchanges in the data value, or a smaller response level value to smoothout changes in the data value.ModeThe Speed Mode and Depth Mode must be set to indicate the way inwhich your system is set up, as follows:• Leave the mode set to Master if the transducer is connected to theRayData directly, or if you wish to repeat depth and/or speed andtemperature information from NMEA.• Set the mode to Repeater if the RayData is primarily a remotedisplay.You can only have one Master setting for each mode on your system.Refer to Appendix B, “Data Sources”, for further information.4.4 Speed CalibrationYou need to calibrate the speed transducer to ensure that the valuedisplayed on the RayData is accurate.When making a calibration, the transducer’s apparent speed reading iscompared with the known speed, determined by travelling a knowndistance and recording the time taken. The factor required to correct thetransducer’s speed reading is stored by the RayData or enteredmanually as a calibration factor. The factor is applied to the speedtransducer data to obtain the correct value on the display. |
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