Do You Need a License for Off-Grid Mesh Texting?
Short answer, for the United States: no license, no exam, no paperwork. Off-grid mesh devices like Smoke Signal use license-free radio spectrum, and as long as the hardware operates within that band's power limits, you can hand one to anyone in your group and be entirely within the rules.
The slightly longer answer
In the US, Smoke Signal devices operate in the 915 MHz ISM band. ISM stands for industrial, scientific, and medical: a slice of spectrum the FCC sets aside for unlicensed use, shared by garage door openers, baby monitors, and a great deal of other consumer radio gear. Devices in this band trade transmit power for freedom: output is capped low, and in exchange nobody needs an operator license.
That trade is what makes long-range, low-power mesh practical for ordinary groups. The radios whisper instead of shout, and they make up for it by relaying for each other.
What this is not
- Not ham radio. Amateur bands require a license and an exam, and license-free mesh devices do not use them.
- Not GMRS. GMRS walkie-talkies transmit at higher power on different frequencies and require a (no-exam) FCC license in the US. Different band, different rules.
- Not a satellite service. No subscription, no airtime, and also no connection to emergency services. Different tool entirely.
Outside the US
License-free bands exist in most regions, but the frequencies and power limits differ (Europe, for example, uses 868 MHz). A device built for the US band is not automatically legal elsewhere. If you plan to travel internationally with mesh radios, check the local regulations for the country you are visiting before you pack them.
Smoke Signal devices ship configured for the US license-free band. Nothing to register, nothing to study for.
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