Cell Signal Guides

Why signal drops indoors, what the numbers mean, and how to measure it yourself.

Your signal at home

Guide
Why Is My Cell Signal Bad Inside My House?
Why your phone has signal outside but drops calls inside: the materials, 5G bands, and carrier factors behind weak home signal, and the fixes, cheapest first.
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Guide
How to Check Your Cell Signal Strength in dBm (and What the Numbers Mean)
Signal bars hide the real number. How to see your phone's signal strength in dBm on Android and iPhone, and how to read RSRP, RSRQ, and SINR values.
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Using the app

Android
Small Cell Baselines and Verification
Baseline a site before a small cell goes in, then use the new node's PCI to show where it serves and where it is only heard.
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