• Check Internet Speed
  • Connection Speed Test
  • Test Internet Speed
  • Internet Speed Check
  • DSL Speed Test
    • Help Desk
    • Bandwidth Explained
    • Cheap Web Hosting

Bandwidth Explained

December 17, 2008 by admin 6 Comments


A simple way to understand bandwidth is to think of a highway. Bandwidth would be the number of lanes on the road and internet traffic would be the amount of vehicles on the highway. If you car is the only one on the road, you can speed to your destination, but if you’re caught in the middle of rush hour, you’ll have a hard time getting there.

Connection TechnologyExplainedSpeedPhysical MediumComments
Dial-up AccessUses a modem
and regular telephone line.
1200 bps to 56 KbpsTwisted pair (regular phone lines) Cheap but slow compared with other technologies.
Bad lines may reduce speed!
ISDNDedicated telephone line and
router required.
64 Kbps to 128 KbpsTwisted pair Not available everywhere but becoming more widespread.
An ISDN line costs slightly more than a regular telephone line, but you get 2 phone lines from it.
56K ISDN is much faster than a 56K dialup line
Cable InternetSpecial cable modem and cable
line required.
512 Kbps to 20 MbpsCoaxial cable; in some cases
telephone lines used for upstream requests.
Must have existing cable access in area.
ADSL/DSL
Asymmetric Digital Subscriber Line
(ADSL is the same as DSL)
This internet technology uses the
unused digital portion of a regular copper telephone line to transmit
and receive information. ADSL is asymmetric since it receives
at 6 to 8 Mbps per second but can only send data at 64 Kbps.
128 Kbps to 8 MbpsTwisted pair (used as a digital,
broadband medium)
Does not impact normal telephone usage.
Bandwidth is dedicated, not shared as with cable.
Bandwidth is affected by the distance from the network hubs. Must be within 5 km (3.1 miles) of telephone company switch.
Limited availability.
Not networkable
Wireless (LMCS)Need a high speed multi-point communications system
(LMCS) network and wireless transmitter/receiver.
30 Mbps or moreAirwaves
Requires outside antenna.
Can be used for high speed data, broadcast TV
and wireless telephone service.
Broadband over Power
(BPL)
Uses your electric wires to connect to the internet.500Kbps to 3MbpsOrdinary power lines New technology but not available everywhere.
Low equipment costs, especially if you are using the home version available at BestBUY, Circuit City and more.
Satellitelatest have two-way satellite access which removes the need to have a phone line, look for this type.6 Mbps or moreAirwaves
Requires outside antenna.
Bandwidth is not shared.
Satellite companies are set to join the new and future technologies such as Internet TV
Latency is typically high
Some connections require an existing Internet
service account.
Setup fees can range from $300-$1200.
Frame RelayProvides a party line type connection to the net and requires an expensive FRAD (Frame Relay Access Device)56 Kbps to 1.544 Mbps (or more,
depending on connection type)
Various May cost less than ISDN in some locations.
Limited availability.
Uses one of the connection types below, fract T1 to OC3
Fractional T1
(Flexible DS1)
There are 23 channels in a T1, a Frac uses just a few of these.64 Kbps to 1.544 MbpsTwisted-pair or coaxial cable Not as costly as a T1 and lets you grow as needed using 64 Kbps increments.
T1Special lines and equipment (DSU/CSU
and router) required.
1.544 MbpsTwisted-pair, coaxial cable,
or optical fiber
Video conferencing, large graphics and file transfers
Large businesses and ISP will have at least this
Expensive
T3ISP uses for Internet
infrastructure connections.
44.736 MbpsOptical fiber 
OC-1ISP uses for Internet
infrastructure connections.
51.84 MbpsOptical fiber 
OC-3Large companies use this for their backbone (as well as the internet)155.52 MbpsOptical fiber 
Filed Under: Broadband Tagged With: bandwidth explained

Comments

  1. azhar says:
    December 22, 2008 at 8:45 pm

    wat is the normal download and upload speed for256kbps

  2. Killie says:
    April 5, 2009 at 2:57 am

    Kbps signifies Kilobits Per Second,

    Bits are 8x smaller than bytes.

    So if I have a 8mbps, that should entitle me 1MBs

    Your 256kbps is only going to allow you 32KBs

  3. steve says:
    April 28, 2010 at 4:39 am

    why dont you have fios listed and explained

  4. YO says:
    July 19, 2010 at 5:51 pm

    How much download and upload speed should 512kbps connection should give?

  5. saad says:
    July 27, 2010 at 5:47 am

    How to check my connection is converted to 2mps from 1mps, what will be the upload and download speed, i need to measure it.

  6. aaa says:
    September 13, 2010 at 2:29 pm

    When I test my internet speed, it shows that my download speed is 502 kbps but when I download a file the download speed is only 100 kbps. Why?

Speak Your Mind Cancel reply

*

*

Return to top of page

Copyright © 2012 · Check Internet Speed.info All Rights Reserved. ·