When mobile networks and the internet fail: stay reachable with amateur radio, mesh, PMR/CB and classic distress signals.
Small LoRa modules build a self-healing network and relay text messages from device to device over kilometres – entirely without mobile network or internet.
Nomad Network is an open-source program for encrypted messages and text pages on the Reticulum network – via LoRa radio, local network or internet, with no account or provider.
With a radio exam and a call sign you reach long distances via repeaters and shortwave – the established emergency-radio infrastructure with its own emergency frequencies and networks.
Handy radios without a licence for communicating in the neighbourhood or group. An immediately ready fallback level over short distances.
With a torch, signal mirror or whistle you transmit signals within sight and earshot. The distress signal SOS is known to every rescuer.
In an emergency the radio broadcasts the official instructions. A crank or battery radio receives even when power and internet are long gone.
Agreed meeting points, message boards and fixed times make communication reliable even completely without technology. Set code words and a plan in advance.
When the mobile network is gone, a radio emergency call can save lives. Whoever transmits in a real emergency may do so even without a licence – what matters is a clear, complete message.
When power, mobile network and internet fail on a large scale, only the satellite path works. Starlink provides broadband, Iridium a portable voice and text lifeline.