Q. In 1998, the Iridium system service was started with

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Q. In cellular telephony, all base channels of Interim Standard 95 (IS-95) need to be synchronized to use

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Q. In Satellite Networks, n orbit is essential for

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Q. The Mobile Switching Center (MSC) transmits the ringing signals, once the mobile station is

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Q. To provide a common second-generation technology for all Europe, the system was designed is

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Q. In cellular telephony, MSC stands for

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Q. To prevent its signal from interfering with other cells, the transmission power of each cell is kept

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Q. Global Positioning System (GPS) is an example of

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Q. To place a call from a mobile station, the caller enters a code of

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Q. A service provider usually has limited

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Q. In Iridium system, active spot beams are approximately

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Q. In Teledesic System, User can communicate directly with the network using

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Q. In Iridium system, the system can have up to

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Q. D-AMPS is a digital cellular phone system using

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Q. A Person should be able to talk to anyone else in the world with a voice quality similar to that of the existing fixed telephone network with a

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Q. The categories of satellite are

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Q. Geostationary satellite cannot cover the whole

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Q. In Interim Standard 95 (IS-95) forward transmission, the scrambling is done to create

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Q. Low Earth Orbit (LEO) satellites has a speed of

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Q. When a mobile phone is called, the telephone central office sends the number to the

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