Band II is the range of radio
frequencies
Frequency is the number of occurrences of a repeating event per unit of time. Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio ...
within the
very high frequency (VHF) part of the
electromagnetic spectrum
The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band. From low to high ...
from 87.5 to 108.0
megahertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose formal expression in terms of SI base ...
(MHz).
Radio
Band II is primarily used worldwide for
FM radio broadcasting.
Broadcast television
Usage in Russia and in other former members of OIRT
In the former Soviet Union and other countries-members of
OIRT
The International Radio and Television Organisation (official name in French: Organisation Internationale de Radiodiffusion et de Télévision or OIRT (before 1960 International Broadcasting Organization (IBO), official name in French: ''Organ ...
, frequencies from 76 MHz to 100 MHz were designated for broadcast television usage.
Considering 8 MHz channel bandwidth used by the Russian analog television system (
System D), the following television channels had been defined:
Broadcast television channels 1 and 2 are assigned to
VHF I band, channels 6 to 12 are assigned to
VHF III band.
Starting from the early 1990s, frequencies previously allotted to television channels 4 and 5 have been re-allocated for FM radio, thereby harmonizing it with the Western allocation for FM radio service.
Other countries
Both Japan, System J and Australia, System B have also had analog TV channels situated within Band II.
References
Radio spectrum
Broadcast engineering
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