Comms · 7 min read
Emergency radio guide: getting information when the network is down
Why FM outlasts mobile data in a crisis, what a hand-crank radio really delivers per minute of winding, and how to set up a household comms plan.
Updated 20 August 2026
Key takeaways
- Mobile networks fail early in an outage; broadcast radio keeps working from stations with backup power.
- FM reaches further on weak signal than DAB, so a radio covering both is the safe choice.
- Hand-crank radios provide minutes of listening per minute of winding — treat them as backup, not primary.
- Write down frequencies and a household meeting plan on paper.
Why radio beats your phone in an outage
Mobile masts have limited battery backup, and network capacity collapses when everyone calls at once. Even where the network survives, your handset battery does not last long if you use it for news.
Broadcast radio is the opposite: one transmitter with serious backup power reaching everyone, and a receiver that runs for days on a couple of AA cells. That asymmetry is why civil protection agencies across Europe still point to radio first.
- Battery radio with AA or AAA cells, plus spares
- FM and DAB coverage — FM degrades more gracefully
- Written list of national and regional station frequencies
- Hand-crank or solar model as the backup layer
Hand-crank, solar and realistic expectations
Crank radios are genuinely useful and routinely oversold. A minute of steady winding typically yields a few minutes of listening at low volume, and the phone-charging function delivers a trickle rather than a real charge.
Treat the crank as insurance for when batteries are gone, keep the radio on cells day to day, and check that the internal battery still holds charge — that is the part that quietly dies in storage.
The survival scenario: a household split across the city
The grid goes down at 16:00 on a weekday. One adult is at work, a child is at school, and calls will not connect. This is where a written plan replaces technology: where to meet, when to wait, who collects whom, and an out-of-area contact everyone tries to text.
Text messages often get through when calls fail, because they need only a brief window of capacity. Agree that everyone texts the same out-of-area contact and then follows the plan, rather than each person improvising.
- One agreed meeting point near home, one outside the area
- An out-of-area contact everyone texts with status
- Printed copies in each bag and wallet — not just in phones
- A fixed check-in time so nobody waits indefinitely
Frequently asked questions
Do I need a radio if I have a smartphone?
Yes. Mobile networks lose capacity and mast backup power quickly, while broadcast radio keeps transmitting and a battery radio runs for days on AA cells.
Are hand-crank radios any good?
As backup, yes. Expect a few minutes of listening per minute of winding, and do not rely on the USB output for meaningful phone charging.
DAB or FM for emergencies?
Choose a radio that covers both. FM degrades gracefully at the edge of coverage, whereas DAB drops out entirely once the signal is too weak.
Ready-made kits for this
Prefer not to shop item by item? These kits already cover the gear in this guide, built from EU stock and priced by budget.
- House · CompleteHouse completeThe full household setupView kit
- Apartment · CompleteApartment completeBacked up on every critical itemView kit
- On the go · CompleteGo-bag completeSelf-sufficient for a week away from homeView kit