xm satellite radio
xm satellite radio
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21.
by Robert Palmer - 2007-09-21
Apart from noise, other forms of interference are found in radio receivers such as image frequency, transmitters operating on an adjacent channel and transmitters operating on the same channel. ...
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22.
by Robert Palmer - 2007-09-21
The functions performed by repeaters are amplification and frequency down conversion. Repeater amplifies signal from a low power level of the order of negative hundred decibels watt to an output...
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23.
by Robert Palmer - 2007-09-10
By fading of a radio signal we mean that incident wave change in the field strength of signal received from distant transmitter. The fading of signal may be put into the following two categories...
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24.
by Robert Palmer - 2007-09-21
Radio Telegraph Transmitter is essentially similar to radio telephone transmitter except for the following differences firstly in the place of a conventionally telephone modulator, a telegraph m...
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25.
by Robert Palmer - 2007-09-21
A general communication system consists of information source, transmitter, channel, receiver and destination. Information or intelligence is basically a physical quantity such as mass or length...
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26.
by Robert Palmer - 2007-09-21
Each letter in the word is represented by different signal amplitude using thirty two scale order. If we do so information flow speed gets greatly increased as per Hartley law. Since now each le...
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27.
by Robert Palmer - 2007-10-08
Microwaves are the portion of the electromagnetic spectrum where the wavelength falls between about one millimeter and thirty centimeters. Microwave frequency bands extend from about one gigaher...
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28.
by Robert Palmer - 2007-10-22
XM satellite radio is one of favorite satellite or digital radio. The main categories of music that are broadcasted over XM radio are country, hits, rock, deep tracks, bone yard, XM Liquid Metal...
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29.
by Robert Palmer - 2007-10-30
A satellite network is a combination of modes that provide communication from one point on the earth to other. A node in the network can be a satellite an earth station, or any end user terminal...
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30.
by Robert Palmer - 2007-11-01
Quantized signal differs from the actual signal. It leads to introduction of same distortion called quantizing noise. We use word noise here since the error so introduced is random in nature. Ra...
