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Broadcast band



Broadcast band commonly refers to several segments of the radio spectrum. In the U.S. the major broadcast bands are:

Common Name Frequencies Modulation Band Notes
"FM"88 to 108 MHzFrequency Modulation (FM)Very High Frequency (VHF) Usually music, due to the clarity and high bandwidth of FM. Relatively short range.
"AM"535 to 1700 kHzAmplitude Modulation (AM)Medium Frequency (MF)Usually speech and news, where a lower bandwidth will suffice. Long range at night due to the ionosphere lowering in altitude.
"Shortwave"5.9 to 26.1 MHzMostly AM and single-sideband (SSB) modes.High Frequency (HF)Very long range through "skipping". Standard time frequencies can be heard here.
"Broadcast Television"54 to 88, 174 to 216, and 470 to 806 MHzvestigial sideband modulation for analog video, and FM for analog audio; 8-VSB or OFDM for digital broadcastVHF and Ultra High Frequency (UHF)Channels 2 through 6 are from 54 to 88 MHz. Channels 7 through 13 are from 174 to 216 MHz. Channels 14 through 69 are from 470 to 806 MHz.

In Europe, North Africa and Asia, longwave radio frequencies between 153 and 281 kHz are used for domestic and international broadcasting.


See also

  • Radio programming
  • Old-time radio
  • Music radio
  • List of radio networks
  • Mediumwave
  • Transistor radio
  • Crystal radio receiver
  • Software radio
  • Radio hardware
  • Web radio
  • Types of radio emissions
  • Dead air
  • Links to UK Radio Stations
  • Radio astronomy
  • Broadcast (band)
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Broadcast_band". A list of authors is available in Wikipedia.
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