Other Definitions
broadcast band (enc)
Broadcast Band
The
broadcast band
is actually several chunks of the
radio spectrum
. In the U.S. the major broadcast bands are:
Frequencies
Cycles/Second
Modulation
Band
Notes
FM
"
88 to 108
MHz
Frequency Modulation (FM)
Very High Frequency (VHF)
Usually music, due to the clarity and high
bandwidth
of FM. Relatively short range.
AM
"
535 to 1700
kHz
Amplitude Modulation (AM)
High Frequency (HF)
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
MHz
Mostly FM, some AM and
single-sideband
(SSB) modes.
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
MHz
vestigial sideband
modulation for
video
and FM for
audio
VHF 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
List of radio stations
Dead air
Links to UK Radio Stations
*
Radio astronomy
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