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"CB" is a reduction from " Citizen's Band "
It
means, that any person can
use a radio communication in a range of 27 MHz.
Depending on in what country you
live
use
this range or
is minimally settled by
rules of carrying out of local communications, or not
settled at all. Inherently means
of a radio communication of this range represent
handy, carried or stationary
radio stations. You can contact
similar radio stations within the limits of their
radius of action. If to establish one
radio station in an apartment, and the second in
the automobile it is possible to have a
continuous communication " the house - the automobile ". Having
established stationary radio stations in a
city apartment and on a country summer residence, it is possible
to
have a continuous communication between them.
Opportunities of application CB
of communication are rather wide. This reliable
enough and accessible communication facility,
allowing to connect, for example, shop with
a warehouse, a warehouse with motor transport, etc.
It is possible to use CB
a radio communication and on
small-sized fleet - on boats and yachts.
Thus range of communication on water considerably
grows. But
the radio communication has found the most mass application CB
as mobile communication. Radio stations in
motor vehicles allow to
support constant contact among themselves, to
receive the operative road information, the
help at a choice of a route, the help at failures and
technical malfunctions in a way. Using CB
radio station it is possible to
contact fire protection, militia, first aid,
emergency services through special
dispatching services which help to
you, having caused on phone the necessary service.
Provisional range of a radio communication:
between base stations - 30-80 kms;
between base station and the automobile - 15-40
kms;
between base station and portable - 3-10 kms;
between automobiles - 15-35 kms;
between the automobile and portable station -
2-7 kms;
between portable stations - 1-5 kms.
For СВ (11-meter), band the same laws
of distribution of radiowaves, as for radioamateur 10-meter operate. Under
conditions of good passage of radiowaves (this mainly day time time) it is possible to
hear with deafening
loudness of radio station Northern and
South America, Australia, Africa and
Asia, and, certainly, to contact them. When
there is no passage communication is possible
on
distance up to 100 kms (in SSB - up to 150 kms).
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