Garmin AQUAMAP 10x2 Series Owner's Manual

Also see for AQUAMAP 10x2 Series: Installation instructions Owner's manual Installation instructions

Contents

Garmin AQUAMAP 10x2 Series Owner's Manual Manual pdf 70 page image

60 AQUAMAP™ 10x2/12x2 SERIESLow or Auto High.• To adjust the gain automatically to show birds over the surface of thewater, select Auto Bird.NOTE: This option is not available on xHD open array or HD/HD+radome models.Adjusting Gain on the Radar Screen ManuallyFor optimal radar performance, you can manually adjust the gain.1 From a radar screen or the radar overlay, select MENU > Gain.2 Turn the knob clockwise to raise the gain, until light speckles appearacross the Radar screen.Data on the Radar screen is refreshed every few seconds. As a result, theeffects of manually adjusting the gain may not appear instantly. Adjust thegain slowly.3 Turn the knob counterclockwise to lower the gain until the specklesdisappear.4 If boats, land, or other targets are within range, turn the knobcounterclockwise to lower the gain until the targets begin to blink.5 Turn the knob clockwise to raise the gain until the boats, land, or othertargets appear steadily lit on the Radar screen.6 Minimize the appearance of nearby large objects, if necessary.7 Minimize the appearance of side-lobe echoes, if necessary.Minimizing Nearby Large-Object InterferenceNearby targets of significant size, such as jetty walls, can cause a very brightimage of the target to appear on the Radar screen. This image can obscuresmaller targets located near it.1 From a radar screen or the radar overlay, select MENU > Gain.2 Select Down to lower the gain until the smaller targets are clearly visibleon the Radar screen.Reducing the gain to eliminate nearby large-object interference may causesmaller or distant targets to blink or disappear from the Radar screen.Minimizing Side-Lobe Interference on the Radar ScreenSide-lobe interference may appear to streak outward from a target in a semi-circular pattern. Side-lobe effects can be avoided by reducing the gain orreducing the radar range.1 From a radar screen or the radar overlay, select MENU > Gain.2 Select Down to lower the gain until the semi-circular, streaked patterndisappears from the Radar screen.Reducing the gain to eliminate side-lobe interference may cause smalleror distant targets to blink or disappear from the Radar screen.Adjusting Sea Clutter on the Radar Screen AutomaticallyRadar echos reflected from the sea waves could disturb the true targets, andshowing on the central area of the radar screen with a lot of random echosignals which known as “sea clutter”. The higher sea waves or the higherthe radar antenna installing on the vessel above the water, the more clutterwill extend. Sea Clutter appears on the screen as many small echoes whichmight affect the radar performance.You can set the AQUAMAP to automatically adjust the appearance of Sea