General information ContentsMemory card compatibilityMicroSD memory cards can be used to backup / archive system data (e.g. Waypoints, Routes, and Tracks), and can also store additional data, such as video recordings (if supported by your display). Once system data is backed up to a memory card, old data can be deleted from the system. The archived system data can be retrieved at any time. It is recommended that your system data is backed up to a memory card on a regular basis.Applications and integrationsLightHouse™ 4 displays support native LightHouse display apps, approved third-party apps, and also integrations with select partner hardware interfaces.Menu typesThe LightHouse™ operating system uses several types of menus which contain settings and options for your MFD.Setting controlsVarious controls are available to aid settings adjustments.Alarm and information notificationsAlarms, warnings and information notifications are used to notify you to a situation or hazard that requires your attention. Notifications are triggered by system functions and external devices connected to the MFD (multifunction display). Alarm and warning notifications are displayed on all networked MFDs.SidebarThe Sidebar is available in all app pages that are accessed from the Homescreen. The sidebar provides quick access to system data.Alpha Series sidebar operations (LightHouse 4 MFD)Some Alpha display functions can be invoked remotely when using a Raymarine® LightHouse™ 4 (v4.5.84 or later) multifunction display / chartplotter, connected to the same network as your Alpha display(s). These functions are split between either the multifunction display / chartplotter’s Network page (for configuration-based options) or Sidebar menu (for features often required whilst sailing).Data overlaysData overlays can be used to display system data on homescreen app pages.Display dataData transmitted by compatible devices connected to the same network as the display, as well as data generated by the display, can be shown as data items in the Dashboard app, the sidebar and as a data overlay.Sonar depth data recording/loggingThe MFD includes features that will record or log your vessel’s depth and position data.Own boat AIS dataBoats equipped with an AIS transceiver can view their own boat’s AIS data.Previous topic: Software Release SummaryNext topic: Getting started