17.17 Sounder set-up menu optionsThis section details the options available in the Sounder set-up menu: (Menu > Set-up > Sounder Set-up).Menu Item Description OptionsPing Rate Hyper Ping is a setting only available on Traditional internaland Legacy sonar modules, for use in shallow waters (depthrange set to 6 meters (20 feet) or less. In depths of over 6meters (20 feet) the ping rate will revert to normal until depthconditions are met.When set to Hyper the display will provide an accurate,undistorted image of the bottom at speeds of up to 40 kts.• Normal (default)• HyperPing Rate Limit Provides a speed limiter; it is useful to adjust the ping ratelimit to suit local conditions. For example, the ping rate maybe too fast when there is a hard bottom in shallow water.Note: Ping rate limit is disabled if Ping Rate is set toHyper.• DownVisionTM and SideVisionTM sonars: 5 to80 pings per second.• Legacy and Traditional Internal sonars: 5 to 50pings per second.• CHIRP and traditional external sonars: 5 to 30pings per second.Ping Enable The sonar ping can be disabled. This is useful when otherequipment is being tested, or if someone is diving beneaththe boat. This setting reverts to Enabled when the sonarmodule is powered off.• On• OffTune Frequency Enables non-CHIRP channel frequencies to be manuallytuned.• –50% to +50%Interference rejection Removes spikes caused by other fishfinder-equippedvessels.Note: Interference rejection is be disabled if Ring Rateis set to Hyper.• Auto• Low• Medium• High• Off2nd Echo IR Adjusts the ping rate in small increments, according to the2nd echo level. This results in better sensitivity of the image.Note: 2nd Echo IR is be disabled if Ring Rate is set toHyper.• Off• Low• HighSonar reset Restore all settings on the sonar module to factory default.When performing a sonar Reset, it is normal to briefly loseconnection with the sonar module.Transducer selection is not affected by the Sonar Resetoperation.• Yes• NoTrip Reset Resets the Trip Counter of the sonar module • Yes• NoFishfinder application 199