@wobblewoo
Cell phone signal strength is measured in decibels (dBm). Signal strengths can range from approximately -30 dBm to -110 dBm. The closer that number is to 0, the stronger the cell signal. In general, anything better than -85 decibels is considered a usable signal.
https://www.accu-tech.com/accu-insider/what-is-a-good-cell-phone-signal-strength#:~:text=Cell%20phon....
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