Which range defines the UHF band commonly used for GPS, Bluetooth, and cell phones?

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Multiple Choice

Which range defines the UHF band commonly used for GPS, Bluetooth, and cell phones?

Explanation:
The range that defines the UHF band is from 300 MHz to 3 GHz. This is the segment of the spectrum that includes frequencies used by GPS (around 1.575 GHz), Bluetooth (2.4 GHz), and many cellular systems (roughly in the 0.7–2.6 GHz region). Those signals all sit within 300 MHz to 3 GHz, so that range best fits what the question asks about. The other options sit outside UHF: 30–300 MHz is VHF, 3–30 GHz is above UHF into the microwave region, and 3 kHz–30 kHz is far too low for these technologies.

The range that defines the UHF band is from 300 MHz to 3 GHz. This is the segment of the spectrum that includes frequencies used by GPS (around 1.575 GHz), Bluetooth (2.4 GHz), and many cellular systems (roughly in the 0.7–2.6 GHz region). Those signals all sit within 300 MHz to 3 GHz, so that range best fits what the question asks about. The other options sit outside UHF: 30–300 MHz is VHF, 3–30 GHz is above UHF into the microwave region, and 3 kHz–30 kHz is far too low for these technologies.

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