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Off-Grid Texting & Tracking

That Just Works

15 minutes to a private, encrypted mesh cluster.
No frequencies. No config hassle. Strong security.

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Works on T-Deck, Pager, Heltec V4, and more.

Same hardware as Meshtastic — but far simpler.

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Why Preppers Choose Blackout Comms

Dead Simple

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Flash → Name → Onboard. A family cluster in 15 minutes. No RF knowledge needed.

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Built-In Security

Asymmetric encryption, frequency hopping, and digital signatures — automatic and stronger.

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Reliable Local Backup

​Texting, location sharing, mesh memory. Works when cell & internet are gone.

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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

See it in Action: Tracking through the Woods - with no cell service

Blackout Comms

[on T-Decks]

Companion App

[Optional / on Android]

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Learn More

Shop Pre-Configured Systems

You choose devices, I assemble & configure - you receive them ready to use!

Optional / Free Companion App

NOT REQUIRED for Blackout Comms to work

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Blackout Comms Live

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Open source Android app connects via BLE:

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  • Live map of your entire cluster: active devices in real time, offline devices last known location

  • Mesh graph showing RF topology and link quality

  • Live traffic monitoring - including unwanted traffic

  • Send/receive secure messages

Getting Started (DIY)

Blackout Comms vs Meshtastic

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Blackout Comms documentation

User Guide

Simple to Use - Like Texting

Blackout Comms on T-Deck
Blackout Comms on Lilygo Pager

DIY & Maker Friendly

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

Build Your Own 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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