Glossary
Marine and app terms used in this manual.
AIS (Automatic Identification System) — live position broadcasts from
nearby vessels. Jules can list the closest traffic
on request.
Anchor watch — keeping check that an anchored boat is not dragging.
AnchorQueen automates this from the SafeAnchor tab.
Armed — the alarm state in which the anchor watch is actively
monitoring your position.
Base map — the underlying chart style. Set in
Captain's Library — the unified manager for saved routes, waypoints,
captain's marks, and recorded passages. Opened from the side menu's
Capt's Routes entry — see [Chart → Captain's
Library](chart.html#captains-library).
Captain's mark — a position you saved on the chart. Marks appear in
the Capt's Notebook Pin Carousel.
Chart region — a packaged offline map area you install from the
Comfort index / score — a sea-state rating (e.g. Moderate Sea State)
shown in Meteo → Events.
Course Predictor — the dashed line drawn ahead of your boat showing
where you will be six minutes from now. Toggle in
Crosshair / reticule — the on-screen target marker that reports depth
at the chart center; toggle in Discover.
Depth-aware route — a route that is planned to keep you in safe water
for your boat. Jules plans these on request.
Document Vault — a private 50 MB store on the
Captain tab for certificates, insurance,
and ship's papers (PDF / JPEG / PNG).
DOP (dilution of precision) — a GPS fix quality number. Lower is
better.
EEZ / maritime zone — a sea-area jurisdiction (territorial sea,
Exclusive Economic Zone) belonging to a sovereign state.
Jules can tell you which one you are in.
Drifting — the alarm state when your boat has crossed the alarm
radius. The radar flashes and the alarm sounds.
Ghost vessel — the semi-transparent vessel marker that plays back the
route during Voyage.
Grounding alarm — a warning that the water under your keel has dropped
below your safety margin. Fires a red chart banner with Silence /
Dismiss; see SafeAnchor.
Heading — the compass direction your bow points, in degrees (0–360).
Holding score — a rating of how well an anchor will grip the seabed
at a spot, based on the seabed type. Ask Jules.
Legend panel — a collapsible side panel that holds layer toggles on
the chart; minimize to the Region Button Bar.
Meteogram — a multi-day graphical forecast; the third sub-tab of
MOB — Man Overboard. The red button on every map tab that drops an
emergency marker and starts return guidance. See
NMEA — the standard sentence format marine instruments use to share
data. Connect a Wi-Fi gateway or Bluetooth pod in
Officer — one of Jules's expert personas (e.g.
meteorologist, navigator). Selected from the pill row at the top of the
chat.
Pin Carousel — the horizontal row of captain's-mark thumbnails in
Port of entry — a harbour with customs and immigration offices where
you can clear in to a country. Jules can find the
nearest ones.
Region Button Bar — the top-center row of minimized legend panel
buttons.
Rode — the chain or rope connecting your boat to its anchor.
Safety Profile — optional SOLAS SAR / ISAF details (blood type,
emergency contact) on the Captain tab,
used when you raise a distress alert.
Scope — the ratio of deployed rode length to water depth. More scope
holds better but lets the boat swing in a wider circle.
Seamark — a charted navigation aid such as a buoy, beacon, or
lighthouse. Jules can list those near you.
Server / Client — the two roles in
Remote monitoring. The server stays aboard; the
client goes ashore.
Speed over ground (SOG) — your speed across the seabed, from GPS.
Sub-mode — a switch inside a tab, shown as a frosted pill bar at the
bottom. SeaTracker has Route / Discover / Voyage; Merconi has Diving /
Discover / Fishing; SafeAnchor has Anchor Watch / Radar / Remote.
Swing radius — the distance a boat moves around its anchor as wind
and tide change.
Tile pack — a downloaded bundle of chart tiles for offline use,
either cached on demand from the Chart tab or as
part of an installed region.
Turn card — the heading and distance instruction shown above the
ghost vessel during Voyage.
Under-keel clearance — estimated metres of water beneath the keel
(negative means aground). Drives the
Vessel Command Cluster — the fan-out floating button on
Voyage with My Vessel / Ghost / Go / Anchor / Depart.