In which of the following area can GPS (Global Positioning System) technology be used -

(a) Military operation, Navy operation & Air force operation.

(b) Paralyze the vehicle in case of theft.

(c) SOS alarm in case of emergency.

Select the correct answer-

This question was previously asked in
RPSC AEn General Knowledge & General Science 2018 Official Paper
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  1. only (a)
  2. (a) & (c) only
  3. (b) & (c) only
  4. All (a),(b) & (c)

Answer (Detailed Solution Below)

Option 1 : only (a)
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ST 1: General Knowledge (History & Culture)
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Detailed Solution

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The correct answer is only (a).

Key Points

The global positioning system (GPS) is a network of satellites and receiving devices used to determine the location of something on Earth. Some GPS receivers are so accurate they can establish their location within 1 centimeter (0.4 inches). GPS receivers provide location in latitude, longitude, and altitude.

Global positioning system (GPS) uses CDMA.

Code division multiple access (CDMA):

  • CDMA stands for Code Division Multiple Access.
  • CDMA (Code Division Multiple Access) uses a digital modulation technique called Direct Sequence spread spectrum which spreads voice data over a very wide spectrum using a user or cell-specific pseudo-random codes.
  • It is a wireless technology used in the transmission of signals from places with high security and Noise reduction.
  • The principle of the spread spectrum is used to work with CDMA.
  • CDMA is not frequency specific to each user, instead, every channel uses the full available spectrum.
  • Each user in a CDMA system uses a different code to modulate their signal.
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