Radio Communication System Ppt

6 02 53 headquarters department of the army washington dc 5 august 2009 tactical radio operations.
Radio communication system ppt. 23 28 practical application exercise. 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. A cognitive radio is an intelligent radio that can be programmed and configured dynamically. The microphone transforms sound waves into electrical signals.
Radio spectrum for communications ranges from approximately 30 hz termed extremely low frequency elf to above 100 ghz termed extremely high frequency ehf. Sprott last modified by. Approved for public release. Magtf communications system equipment prc 117f p.
I field manual no. Because of its capability to provide very wide area coverage and pene. 5 28 1997 4 58 32 pm document presentation format. Radio communication system related digital audio broadcast system.
Unlike the telephone transmitter the microphone used in radio communication has an electromagnet as main component. Tbs is the the basic school so they will not be getting the most high speed gear out there. Radio frequency spectrum is a key distinguishing factor used to compare alternative mobile radio systems. Figure 2 3 shows the elements of a radio communication system.
Future technology for radio communication cognitive radio networks cognitive radios have the ability to monitor sense and detect the conditions of their operating environment. At the same time an oscillator circuit generates the fixed frequency carrier waves which. In this first chapter we explore those principles and the different ways in which people communicate. All forms of communication follow the same basic principles.
Overview and agenda of platform class. Emphasize that this is only the tip of the iceberg. The basics of command control and of radio procedures. Its transceiver is designed to use the best wireless channels.
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.