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Blackout Comms®

Simple, Secure Off-Grid Messaging & Location

  • Independent of Grid, Internet, Cell

  • No Phones or Apps Required

  • Uses local radio frequencies

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Choose what you want, we set it up

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Follow our DIY guides

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Unlike any other civilian mesh system

Learn about mesh memory, frequency hopping, zero touch trust & advanced security

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Mesh Memory

Every comm and node in the cluster continuously retains and propagates the last known position, heading, speed, and battery level of every other device — including ones that have powered off [see demo].

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Messages are delivered and confirmed with cooperation of the entire cluster. Even devices powered off can receive a message up to 24 hours later.

Learn More

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Blackout Comms Live

Optional Companion App

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Watch a Demo

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Learn More

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Compatible device required

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Our free & open source Android app connects via Bluetooth:

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  • Live map of your entire cluster: active devices in real time, offline devices pinned at last known position (and heading)

  • Mesh graph showing RF topology and link quality

  • Live traffic monitoring - including unwanted traffic

  • Sending/receiving secure broadcasts and direct messages

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Simple To Use - Like Texting

Blackout Comms documentation

User Guide

Use it pretty much like a texting app, touching, swiping, and typing.

Blackout Comms on T-Deck
Blackout Comms on Lilygo Pager
Already have T-Deck or Pager?
Lilygo pager and T-Deck Plus
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About

When You're Off-Grid

Perfect for camping, hiking, or hiding caches.

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DIY & Maker Friendly

Blackout Comms works on many pre-built and even full DIY projects. You can choose!

Forest

Build a Blackout Comms® GO Kit

Your Mobile Base can also store 2 or more messaging devices

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Weather-resistant, drop-anywhere, carrying case, doubles as a mobile base

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Encrypted, jam-resistant messaging and location sharing Any Time / Anywhere!

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Fully set up and tested by us, you just choose devices

Who am I?

  • I am Matt Calhoun / Altware Development LLC, based in Indiana

  • I work to enable private communication any time, anywhere

  • My continuing work on Blackout Comms​​​ supports this

Your purchase of devices or firmware licenses...

Helps improve the firmware

Allows me to create and host helpful content

Funds testing of the newest antennas, hardware, and techniques, which I share with you

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Blackout Comms Network Mixing now lets you auto-switch between mesh systems, enabling maximum range and connectivity.

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Blackout Comms Native

  • Highest security

  • Anti-jamming

  • No infrastructure needed

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Blackout Comms via MeshCore

  • Uses growing network of repeaters

  • Double-encrypted

  • More susceptible to jamming

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