How Far Does Off-Grid Mesh Actually Reach?
Ask how far an off-grid mesh device reaches and you will get answers from one mile to ten. Most of them are true somewhere and useless everywhere else, because radio range is not a number. It is a function of terrain, and anyone quoting a single figure without saying where they measured it is selling, not reporting.
What we measured
We test Smoke Signal devices in the SoCal chaparral: broken ridgelines, brush-choked drainages, the kind of terrain that blocks line of sight every few hundred yards. Here is what the field tests actually show.
WITH A RELAY · 3.5–4+ MI · one device on high ground relaying
CONDITIONS · TERRAIN + LINE OF SIGHT DEPENDENT
From a ridgeline or across open water, expect many times more than in dense brush. In a slot canyon, expect less. Line of sight is the whole game: the radio does not care about your spec sheet, it cares about what is physically between the two antennas.
Why range compounds
The peer-to-peer number is the floor, not the ceiling, because every device in a Smoke Signal group also relays what it hears. A message that cannot reach its target directly hops through the devices in between. Put one device with a hiker on a saddle and the two groups on either side of the ridge are connected through it, at distances neither could manage alone.
This is the practical answer to the range question: a spread-out group covers far more ground than any single link. Four devices are not four times one device. They are a network with four paths through the terrain.
How to read any vendor's range claim
- Ask where it was measured. Flat desert and open water produce spectacular numbers that mean nothing in forested hills.
- Ask whether it is peer to peer or through relays. Both are legitimate, but they are different claims.
- Treat any fixed number with suspicion, including ours. Test with your group, in your terrain, before you depend on it.
Range compounds with every device you add. That is why Smoke Signal ships kits, pre-paired and ready at the trailhead.
See kits and devices