Q. I'm having slow internet maybe this is my problem?
A. Many wireless devices operate on the 2.4ghz frequency. That frequency is actually divided up into different channels, each one operating a slightly different frequency range, with some overlap. The 2.4000�2.4835 GHz band(which is what the 802.11 wireless standard uses) is divided into 13 channels each of width 22 MHz but spaced only 5 MHz apart, with channel 1 centered on 2412 MHz and 13 on 2472. By changing the channel your router operates on you can potentially reduce interference from other nearby wireless networks and cordless phones. Be advised however, that these are not the only sources of interference to wireless networks. Microwave ovens, large metal objects, walls, baby monitors, among others, can cause interference and degradation of your wireless signal. One other note is that some cordless phones that operate on the 2.4Ghz band occasionally switch channels as a security measure to prevent eavesdropping. This can sometimes cause intermittent interference.
What do this numbers for wireless routers mean?
Q. 802.11g
802.11g+
802.11b
802.11a
Are they supposed to be better than the next if so which is the best
802.11g+
802.11b
802.11a
Are they supposed to be better than the next if so which is the best
A. IEEE 802.11 is a set of standards for local wireless communication which has evolved through several revisions, including the numbers you list. I don't know what g+ is, and guess it to be a manufacturer's proprietary 'enhancement' to the g standard.
802.11a used the 5GHz band which is a relatively uncrowded spectrum, so preventing interference from other devices (microwaves, phones, baby monitors, etc) but suffered from a lower effective signal range. Subsequent 802.11 revisions use the more crowded and therefore potentially more interference prone 2.4GHz band, however overall performance saw 802.11b adopted as a standard which has since been refined and speed-boosted through g and (almost) n revisions.
Average routers currently sold offer the g standard (54mbps) and allow backwards compatibility with b with mixed mode networks if required. Spend more on n for the extra speed and range if your equipment can use it, and bear in mind this standard is not finalised.
See a complete and long reference at Wikipedia:
http://en.wikipedia.org/wiki/802.11
802.11a used the 5GHz band which is a relatively uncrowded spectrum, so preventing interference from other devices (microwaves, phones, baby monitors, etc) but suffered from a lower effective signal range. Subsequent 802.11 revisions use the more crowded and therefore potentially more interference prone 2.4GHz band, however overall performance saw 802.11b adopted as a standard which has since been refined and speed-boosted through g and (almost) n revisions.
Average routers currently sold offer the g standard (54mbps) and allow backwards compatibility with b with mixed mode networks if required. Spend more on n for the extra speed and range if your equipment can use it, and bear in mind this standard is not finalised.
See a complete and long reference at Wikipedia:
http://en.wikipedia.org/wiki/802.11
How is 802.11n able to communicate further than 802.11b/g?
Q.
A. Think of 802.11n like the high hat of a symbol from a drum set. When its struck with a drum stick the sound is high pitch can be heard from quite a distance. Like the 802.11n frequency operates at both 2.4Ghz and 5Ghz. Without getting to technical the 802.11n operates in the 5Ghz range and the capabilities allow for faster connection (transmission rate) and further distance due to the high frequency. However the draw back is that since the 5Ghz frequency is thin and can be easily weakened by obstructions like walls, glass, metallic objects, even carpet.
The 802.11 2.4Ghz operates at a lower frequency and has a slower transmission rate and goes shorter distances. The upside to this is that the 2.4Ghz can penetrate to obstructions better than the 5Ghz range. A nice reference is the sounds of bass. A car drives by playing music but all you hear is the deep thumbing from the bass. Bass = lower frequency but has a strong impact on penetrating through walls and objects.
Hope this helps.
Also consider electronic interference with your wireless network such a cordless phones that operate in 2.4Ghz & 5Ghz, also microwave ovens, baby monitors, even refrigerators.
The 802.11 2.4Ghz operates at a lower frequency and has a slower transmission rate and goes shorter distances. The upside to this is that the 2.4Ghz can penetrate to obstructions better than the 5Ghz range. A nice reference is the sounds of bass. A car drives by playing music but all you hear is the deep thumbing from the bass. Bass = lower frequency but has a strong impact on penetrating through walls and objects.
Hope this helps.
Also consider electronic interference with your wireless network such a cordless phones that operate in 2.4Ghz & 5Ghz, also microwave ovens, baby monitors, even refrigerators.
What difference do all the Wireless Internet Laptop Cards have? Which is the best? Why ?
Q.
A. They all use 802.11.
The difference is that some have 802.11 a, 802.11 b, 802.11 g or 802.11a/b or 802.11 a/b/g.
802.11b and 802.11g standards use the 2.4 GHz (gigahertz) band, operating (in the United States) under Part 15 of the FCC Rules and Regulations. Because of this choice of frequency band, 802.11b and 802.11g equipment will suffer interference from microwave ovens, cordless telephones, Bluetooth devices, baby and security monitors, amateur radio and other appliances using this same band. The 802.11a standard uses a different 5 GHz band, which is clean by comparison. 802.11a devices are not affected by products operating on the 2.4 GHz band.
802.11a is best at home but not all public access point transmits in 802.11a.
The difference is that some have 802.11 a, 802.11 b, 802.11 g or 802.11a/b or 802.11 a/b/g.
802.11b and 802.11g standards use the 2.4 GHz (gigahertz) band, operating (in the United States) under Part 15 of the FCC Rules and Regulations. Because of this choice of frequency band, 802.11b and 802.11g equipment will suffer interference from microwave ovens, cordless telephones, Bluetooth devices, baby and security monitors, amateur radio and other appliances using this same band. The 802.11a standard uses a different 5 GHz band, which is clean by comparison. 802.11a devices are not affected by products operating on the 2.4 GHz band.
802.11a is best at home but not all public access point transmits in 802.11a.
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Title Post: what problems could changing the channel on your router fix?
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