Radio
Voice and data radio technologies that work without internet or commercial infrastructure — from $25 handhelds to global HF links.
Analog FM (VHF/UHF)
Voice. Works everywhere. Zero infrastructure.
The simplest and most universal transport. Every handheld radio speaks analog FM. No digital infrastructure required. Intelligible even at low signal levels.
LoRa / Meshtastic
Long-range text mesh. No infrastructure needed.
Meshtastic turns commodity LoRa hardware into a self-healing text mesh. Messages hop node-to-node (default 3 hops). AES-256 encrypted private channels. Bluetooth to your phone via iOS/Android app. Longest documented link: 254 km mountain-to-mountain.
AREDN Mesh
High-speed IP network. No internet. Amateur bands.
Open-source firmware for off-the-shelf WiFi hardware that creates a high-speed amateur radio mesh. Operates under Part 97 rules, allowing higher power and directional antennas for 30+ km links. Runs any IP-based service.
Ham HF Radio
Global range. No infrastructure. All weather.
HF radio (3–30 MHz) uses ionospheric reflection to communicate globally without any infrastructure. The most resilient long-distance communication available — cannot be blocked geographically.