User ManualTable of ContentsINTRODUCTION3SPECIFICATIONS3INSTALLATION4PERMANENT MOUNT TRANSDUCER5POWER CONNECTIONS10FISH ID 128 PORTABLE11KEYBOARD BASICS14DISPLAY14OPERATION15MENUS15AUTOMATIC15RANGE15ZOOM16SENSITIVITY17FISH ID17FISH TRACK™18CHART SPEED19DISPLAY MODE19ALARMS20BACK LIGHT21FEET/METER21DISPLAY CONTRAST21ASP (Advanced Signal Processing)22SIMULATOR22FISH ARCHES23WATER TEMPERATURE AND THERMOCLINES24TROUBLESHOOTING25WARRANTY29Size: 387 KBPages: 32Language: EnglishOpen manual