AREDN (Amateur Radio Emergency Data Network) is a way for amateur radio operators to create a private, wireless internet-like network that works even if normal internet and phone services go down.
It uses off-the-shelf Wi-Fi equipment that’s been specially programmed to send signals long distances — from building to building, hilltop to hilltop — using amateur radio frequencies. Think of it like a mesh network that can carry emails, files, live video, or chat messages during a disaster, public event, or emergency response.
In simple terms:
AREDN is a backup communication network for when normal systems fail. It helps connect hospitals, shelters, emergency teams, and command centers without needing phone lines or commercial internet.
Used for:
Emergency coordination
Live camera feeds from storm or disaster sites
Sending files like maps or shelter lists
Chat or email between responders
Linking remote areas with no internet access
It’s like a private emergency internet run by ham radio operators to help their communities.