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Why is my mobile signal weak indoors or on the train in Denmark?

Indoor and on-the-move coverage

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Short answer

Mobile coverage in Denmark is generally good, but the signal can be weak far from a mast or behind hills and buildings. Indoors, well-insulated buildings and sun-reflecting windows can damp the signal a lot. In cars and trains, speed and the build of the train reduce coverage. Wifi calling at home is a legal fix if your phone and plan support it. Mobile signal boosters are generally not legal to use without an agreement with the operators, and a violation can be fined.

Practical info

Why

  1. Insulation and coated windows damp the signal.
  2. Speed and train construction reduce coverage.
  3. Boosters need the operators' agreement.

Details

A metal phone cover also weakens the signal, so a plastic or rubber cover is better.

Tip

Place a mobile modem high up, near a window, in an open room.

What may differ

New buildings and energy renovations can change indoor coverage, for better or worse.

Common misconception

You can buy a signal booster and use it freely.

What actually happens

Boosters break the frequency rules unless the operators agree, and fines are possible.

People also ask

  • Is there an official mobile coverage map?
  • What is wifi calling?
  • Who do I contact about bad coverage?

Sources

This answer is for reference only. Prices and terms of mobile plans are set by each operator, so check them with your own operator.

Practical info
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