Q. Global star communication requires both satellites and

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Q. Advanced Mobile Phone Service (AMPS) has a frequency reuse factor of

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Q. Personal Communication Service (PCS) uses any second-generation

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Q. Low Earth Orbit (LEO) satellites has the rotation period of

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Q. The concept of the Iridium system was Initiated by

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Q. A natural satellite can be used as a relaying node in the network, such as

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Q. The big LEOs operate between

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Q. In Low Earth Orbit (LEO) satellites, the round-trip time propagation delay is normally less than

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Q. In third generation Cellular Telephony, the data rate of access is 384 Kbps for

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Q. To find our exact position in space we need at least

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Q. AMPS stands for

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Q. In Interim Standard 95 forward transmission, the output of the decimator is used for

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Q. The atomic clock is precise and can function synchronously with each other in

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Q. Traffic channels in forward transmission of telephony, carrying digitized voice from the base station to the mobile stations are Channels 8 to 31 and

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Q. In cellular telephony, MSs stands for

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Q. In third generation of Cellular Telephony, the portable device is always

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Q. Third generation of Cellular Telephony, has the bandwidth of

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Q. The Teledesic project was started in 1990 by

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Q. The third generation of cellular telephony refers to a combination of technologies that provides

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Q. In cellular telephony, the Electronic Serial Number (ESN) is unique for each

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