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What is Uplink and Downlink Frequencies Explained about?

Uplink frequencies in GSM are lower than downlink frequencies because mobile devices have lower transmission power due to battery limitations. The Friis equation shows that transmission power and frequency are directly proportional, so lower power mobile devices are allocated lower uplink frequencies. Downlink frequencies are higher to allow signals to propagate slightly farther from high-power base stations to mobile devices. In satellite communications, uplink frequencies are often higher than downlink fr

Author

mdbabar19

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EN