Using a phone outdoors? This is what you need to know to stay in touch.

How far can the radio signal from a cell tower travel? In a best case scenario, given a clear line of sight, no obstructions, ideal atmospheric conditions, and a powered-up cell tower, a normal phone has enough power to communicate with a tower that’s about 45 miles away. But, a more real world maximum is typically going to be 22 miles or fewer.

A man talks on his phone at Horton Plains National Park in Sri Lanka.

Learn How Weather Affects Your Cell Signal

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