Radio Communication System Ppt

23 28 practical application exercise.

Radio communication system ppt.

In this first chapter we explore those principles and the different ways in which people communicate. At the same time an oscillator circuit generates the fixed frequency carrier waves which. These signals are fed to the modulator. Because of its capability to provide very wide area coverage and pene.

Tbs is the the basic school so they will not be getting the most high speed gear out there. A cognitive radio is an intelligent radio that can be programmed and configured dynamically. Radio frequency spectrum is a key distinguishing factor used to compare alternative mobile radio systems. I field manual no.

5 28 1997 4 58 32 pm document presentation format. 6 02 53 headquarters department of the army washington dc 5 august 2009 tactical radio operations. Figure 2 3 shows the elements of a radio communication system. Communications equipment ł vhf has the advantage of being able to pass through bushes and trees ł vhf has the disadvantage of not reliably passing through buildings ł 2 watt vhf hand held radio is capable of transmitting understandably up to 30 miles line of sight radio theory the basics.

Clint sprott created date. Future technology for radio communication cognitive radio networks cognitive radios have the ability to monitor sense and detect the conditions of their operating environment. The basics of command control and of radio procedures. Radio spectrum for communications ranges from approximately 30 hz termed extremely low frequency elf to above 100 ghz termed extremely high frequency ehf.

The microphone transforms sound waves into electrical signals. Sprott last modified by. Propagation characteristics of radio channels 8 flynn katz sdr july 1 2010 ground wave low mhz waves guided between earth and ionosphere distance of communication varies based on wavelength am radio 1 mhz propagates 100 miles in day but longer at night predictable propagation sky wave. Radio communication system related digital audio broadcast system.

Approved for public release. Magtf communications system equipment prc 117f p. Overview and agenda of platform class. We also look at radio waves and learn how radio technology is able to make your voice heard many miles away.

Unlike the telephone transmitter the microphone used in radio communication has an electromagnet as main component. Fm 6 02 53 distribution restriction.