Millions of people around the world watch TV through cable. Now we have the technology to get high speed internet and telephone voice services through the same cable TV. To enable this, a cable modem is used to separate the signals for TV, internet and voice calls.
How cable modem works?
Normally a co-axial cable is used as a carrier for cable TV lines. In a cable TV network, the line from the base station up to the client termination area will usually be of optic fiber. Each television channel takes up as much as 6 MHz of bandwidth. There’ll be lots of bandwidth space available even after accommodating all the TV channels. Internet line can also be connected as another TV channel. The download stream will need a 6 MHz while the upload stream will require only 2 MHz. A cable modem can be internal to a PC or provided along with the cable TV set top box.
Each And Every Cable Modem Will Have The Following Modules:
- A TV tuner
- modulator
- demodulator
- a media access controller
- a microprocessor
- network output as USB or Ethernet
Through the Ethernet port, lines of internet and telephone are taken out.
One of the great strengths of using cable TV lines for internet is its speed. The cable TV internet can support up to 30 Mbps. Usually a speed of 1 to 4 Mbps is leased out by the service providers. There are lots of cable TV providers which provide internet; Comcast is one of the pioneering companies in providing internet & telephone through cable TV. Very good Comcast deals can be located by searching the web for Comcast cable deals.
How cable modem works?
Normally a co-axial cable is used as a carrier for cable TV lines. In a cable TV network, the line from the base station up to the client termination area will usually be of optic fiber. Each television channel takes up as much as 6 MHz of bandwidth. There’ll be lots of bandwidth space available even after accommodating all the TV channels. Internet line can also be connected as another TV channel. The download stream will need a 6 MHz while the upload stream will require only 2 MHz. A cable modem can be internal to a PC or provided along with the cable TV set top box.
Each And Every Cable Modem Will Have The Following Modules:
- A TV tuner
- modulator
- demodulator
- a media access controller
- a microprocessor
- network output as USB or Ethernet
Through the Ethernet port, lines of internet and telephone are taken out.
One of the great strengths of using cable TV lines for internet is its speed. The cable TV internet can support up to 30 Mbps. Usually a speed of 1 to 4 Mbps is leased out by the service providers. There are lots of cable TV providers which provide internet; Comcast is one of the pioneering companies in providing internet & telephone through cable TV. Very good Comcast deals can be located by searching the web for Comcast cable deals.
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