xm satellite radio
xm satellite radio
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1.
by Jason ciment - 2006-10-12
What follows in a review of xm and sirius satellite radio blog postings from http://www.jasonciment.com/sirius_satelliteradio_xm/ that have been written mostly about the new Sirius Stiletto 100 p...
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2.
by Robert Palmer - 2007-07-01
There are two types of devices in which it may be necessary to generate amplitude modulation. The first of these is, the amplitude modulation transmitter generates such high power that its prime...
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3.
by Robert Palmer - 2007-07-01
Signal that has to be transmitted is impressed onto a carrier wave in any of the modulation methods, and it is then amplified and applied to the transmitting antenna. The modulated signal is rad...
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4.
by Robert Palmer - 2007-07-01
There are many similarities between radio frequency amplifiers and audio frequency amplifiers, but there are also many differences. Radio frequency amplifiers perform the same amplifying functio...
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5.
by Robert Palmer - 2007-07-01
To transmit radio waves we need Antennas. Although there are many different types of transmitting antennas available, the two principle categories are the half wave and quarter wave. Each has it...
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6.
by Tymon Hytem-5496 - 2007-08-01
Radio antennas have two fold functions. First of these functions is to radiate the radio frequency energy generated in the transmitter and fed to the antenna by a transmission line. In this capacity t...
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7.
by Tymon Hytem-5496 - 2007-08-01
Spurious responses peculiar to super heterodyne receivers only are image frequency signals, signals if intermediate frequency, harmonics of intermediate frequency generated by the second detector and ...
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8.
by Robert Palmer - 2007-07-31
The word heterodyne means to mix. Heterodyne reception stands for the radio reception after covering the modulated carrier voltage into similarly modulated voltage at a different carrier frequen...
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9.
by Tymon Hytem-5496 - 2007-08-01
In a radio transmitter power supplies are required to provide anode and grid screen voltages, grid bias voltage and filament voltages. The nature of basic supply used for any transmitter depends prima...
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10.
by Tymon Hytem-5496 - 2007-08-01
In pulse code modulation the total amplitude range of the signal is divided into a number of standard levels at equal intervals. These levels are transmitted in the binary code. Hence the actual numbe...