What is a "Cell Phone Signal Meter"? The Most Authoritative Explanation.
How is cell phone signal strength measured?
Signal strength for cellphones is calculated using dBm (or decibel milliwatts) as its standard unit of measure. On a signal strength meter, dBm is typically expressed as a negative number—such as -88. The closer to zero the reading is, the stronger the cell phone signal.What is a good cell phone signal?
Cell phone signals are radio waves, the AM/FM kind, that operate within a certain frequency: - 50 decibels to -120 decibels (dBm). -50 dBm is great signal or full bars. -120 dBm is very poor signal or a dead zone.How can I see my signal meter on my iPhone 7?
OK, just for you Android users, here's how you can see your signal meter (although you can't have it permanently on your screen). Just go to Settings > About Phone and it's right there along with network type. There are two versions of the iPhone 7 -- did you end up with a fast one or a slow one?What is the best cell signal analyzer for my phone?
The PRO version uses a better online tower database and features a signal tracker log. The main two apps we highly recommend are LTE Discovery and Network Cell Info Lite. These cell signal analyzers are used even by professional signal booster installers in addition to signal meters, and those we've talked to swear by them.
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