Therefore, anything and everything can easily absorb, interfere, disrupt and block uploads & downloads from your cell phone. Check out the chart below to get a better understanding: DecibelsĮveryone’s cell coverage is different thanks to factors such as carrier preference, cell tower distance, outside interference, building material, internal impediments, and user location. This is the fragile nature of radio frequency, especially with cell phone signals. Even something as “small” as +3 dB represents 2x the power! Conversely, -3 dB means half the power. It's important to know that decibels are measured exponentially. Within the range between -101 dB and -120 dB, it’s possible to have working signal, but service is severely affected and spotty like a 101 Dalmatians. Most cell phone reception & service problems begin when signal strength ranges from -90 to -100 dB. In bar talk, -50 dB represents full bars, while -120 dB represents zero bars. This is the signal standard for all phones & cell devices, and for all carriers in North America. How Uplink & Downlink Power in Cellular Signal is MeasuredĬell phone signal strength is measured in decibels (dBm).įrom a signal level of -50 dBm to -120 dBm, cellular signal can range from great signal (-50 dB) to good signal (-80 dB) to average signal (-90 dB) to below average signal (-100 dB) to near dead zone (-120 dB). You're going against other like-minded people. So those peak hours when you're making a call. Cell towers can technically serve hundreds to thousands of cell devices but not all at once. Yes, even weather conditions such as thunderstorms, snow, and cloudy days interfere with uplinks & downlinks. Surrounded by lots of electronics or other radio-frequency-disturbing devices? They affect cell signals. Virtually any building material can disrupt cellular signal and internet speeds. Tall trees, mountains, valleys, high structures, and other crowded development can easily alter and interrupted signals. Long distance relationships don't work with cell phones and cell towers. If you happen to go over your allotted data plan, even if it's "unlimited," carriers such as AT&T and T-Mobile can reduce your internet speeds. Causes of Disrupted Uploads & Downloads on Your Cell Phone
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