Contents 3Contents1 Introduction 91.1 General overview 91.2 About this manual 101.3 SimNet/NMEA2000 101.4 WR20 Remote (not supplied) 102 Installation 132.1 General 132.2 Panel mounting 132.3 Bracket mounting 142.4 GPS antenna 142.5 VHF antenna 162.6 Power/data cable 182.7 SimNet cable 182.8 SD card (not supplied) 193 Keypad Overview 213.1 Layout 213.2 PWR/Lights key (powering on/off) 223.3 Navigation keys 22Display mode 22Menu mode 22Data entry mode 233.4 Zoom keys 233.5 ENTER/MENU 233.6 INFO/STATUS 233.7 TRACK/CLR TRK 23