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Mountpoint map

Remko Welling edited this page Oct 16, 2026 · 1 revision

The mountpoint map

Every mountpoint a caster publishes, on one screen: which base is near me, and which way? Fill in the caster and port, save, then tap Map mountpoints… beside Browse mountpoints… on the main screen.

What you are looking at

The map is centred on this phone when it has a location fix, and on the set position otherwise; the header says which. Distance and bearing from the centre are true everywhere on the screen, so the rings mean what they say. Coastlines and borders further out stretch — the header says that too. Pinch to zoom, drag to pan, Recentre to go back.

Each mark is a mountpoint, shaped and coloured by what its sourcetable entry says it is:

Mark Kind
circle Fixed base — one station at one place
diamond Network service — a VRS or nearest-base service that answers for where you are
triangle Product, no station — an ephemeris or correction stream with no antenna behind it
square Unknown — the entry does not say enough to tell

The kind is the app's reading of the sourcetable, and the balloon says why it decided that. An entry whose position cannot be used — none given, 0,0, or out of range — is counted and not drawn, rather than being put somewhere it is not.

Tapping a mountpoint

A balloon shows its name, identifier, format, constellations, network, its kind and the reason for it, its distance and bearing from the centre, and whether it expects a position from you.

  • Pro: Select mountpoint makes it the connection — with its published position and its position-reporting setting, exactly as picking it from the list does.
  • Free: the balloon says what the paid edition adds. Type the name into the connection settings to use it.

Nothing is fetched to draw the map: the outlines come with the app (made with Natural Earth). The mountpoint list is fetched from the caster once, when the map opens.

The list, sorted

Browse mountpoints… shows the same entries as a list, now with each one's distance and bearing, measured from the same centre the map uses. Sort it Nearest first (the default), A–Z or Z–A; the filter narrows what is sorted. Entries without a usable position say so and come last. The order you pick is kept while the app runs.

When the list does not come

If the caster cannot be reached, refuses, or goes quiet, the map and the list say so in the same sentences as a failed connection — see Troubleshooting. A list cut short is asked for once more, and never shown as if it were the caster's whole list: a caster that stopped sending after twelve of its six thousand mountpoints would otherwise look like a caster with twelve.

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