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weBoost Cellular Boosters cover voice, 3G, and 4G LTE for all the major carriers. So, why not Sprint Spark? Sprint Spark is considered 4G LTE, but the network uses a combination of these bands: 800 MHz (the old iDEN freq), 1900 MHz, 2500 MHz (the old Wi-Max freq).
weBoost's new 4G line of products will cover 700, 850, 1900, 1700/2100 MHz. This means that the new boosters will cover the 1900 MHz, but not the lower end of the 800 MHz band, and no coverage for the 2500 MHz. Although our weBoost's 4G boosters will not cover the Sprint Spark network, they will still support the voice and 3G for Sprint’s network.
What is dB Gain? Cell phone signal strength is measured in dB (decibels). Typically, -50 dB represents great signal (full bars) and -110 dB is virtually no signal (dead zone).How to put Cell Phones into Field Test Modes
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