Broadband
The New Way of Transmission
Quicker than Telephone Line Transmission
In general electronics and telecommunications, any signal or circuit which
consists of or handles a broad range of frequencies is known as broadband.
This is a term that is used relatively and is best understood in the context
of wide frequencies.
The broadband range of signals is broad as the term itself implies, and is
different to radio signals which carry a very narrowband consisting of Morse
code. Broadband can carry much more than just Morse code and includes speech
and music and at the same time does not lose the high audio frequencies required
to reproduce realistic sounds.
While the ordinary television antenna called “normal” can receive a certain
range of channels, “broadband” television antennas can receive a much higher
number of channels. While for data communication the device known as a modem
can transmit in a bandwidth of 64K bits per second over telephone lines, the
broadband equivalent known as ADSL can, over the same telephone line, carry
a bandwidth of several megabits per second.
In modern terminology, broadband with regard to data communication may also
refer to data transmission over fiber optic cables as opposed to the 600 bits
per second achieved by using a telephone modem. There are however other more
technical interpretations of the term broadband and they mainly refer to the
simultaneous transmission of data consisting of multiple pieces of data in
order to increase the effective rate of transmission without taking into consideration,
the actual data rate of transfer.
Another use of broadband is through multiplexing, which means sending data
over separate physical channels simultaneously and allows for multiple accesses.
These channels may be separated from each other by time (time division multiplexing)
or in carrier frequency or wavelength division multiplexing and finally, in
access method. Taken as a whole, they constitute broadband communication while
separately they are considered as narrowband.
Due to the fact that a wide band of frequencies are used, information may
be multiplexed by sending them on many separate channels or frequencies within
the band at the same time thus enabling it to transmit more data in a specified
time frame just like the greater number of lanes on a highway allow more number
of cars to travel at the same time.
There are also certain minimum data transfer rates that are said to define
when the data is being transmitted as broadband and when it is narrowband.
This minimum rate of transfer for broadband transmission may vary between at
least 20KHZ to 256KBPS to channels that are at least 6MHZ wide.
Looking for more information on Broadband, then please feel free to
visit our other pages Advantages of a Broadband Accelerator, Getting Great Broadband Access, Available Broadband Antenna Options, The Government’s Role in Expanding Broadband Availability, What Is Broadband Cable?, A Broadband Cell Phone Allow for Faster Surfing, Make Sharing a Broadband Connection Between Different Computers Possible, Do You Need Broadband For Your Business?, Broadband High Speed Internet Keeps You Going, Broadband Internet is Faster and Better than ever Before
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