High Desert Institute

Why build off-grid mesh networks: disaster communications

Parent Project: Cyberpony Express

In disasters, the failure mode is rarely “no one has a phone.” It is “phones can’t reach anything”: towers lose power, backhaul breaks, networks congest, and internet dependencies cascade.

What a mesh gives you

  • A local, off-grid communications backbone that can keep working when cell and internet are down.
  • A way to move short messages across distance using relays (outpost-to-outpost).
  • A base layer for services like a bulletin board (leave messages and pick them up later).

What it does not magically solve

  • Range still depends on terrain, antenna height, placement, and stewardship.
  • You still need power planning (solar/battery) and physical security.

How to get started

  • Start with a small, testable slice: a few nodes that can pass messages reliably.
  • Use the workshops as the practical guide: Workshops.

Examples: