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Wireless hardware

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Wirless hardware 801.11 a/g, 802.11b, 802.11n, 802,11ac for sale

Wireless hardware South Africa Wireless standard - wireless speeds 802.11b up to 11Mbps 802.11a/g up to 54Mbps 802.11n (2.4GHz) up to 450Mbps 802.11ac (5GHz) up to 1.3Gbps Wireless standard - wireless coverage (distance, range) 802.11b Typical indoor range is 30 m (100 ft) at 11 Mbit/s and 90 m (300 ft) at 1 Mbit/s. 802.11g  Up ....more..
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Antennas - Splitters - Pigtails - Masts & Dish
R 45 inc VAT
Antennas - Splitters - Pigtails - Masts & Dish
R 54 inc VAT
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Wirless hardware 801.11 a/g, 802.11b, 802.11n, 802,11ac for sale



Wireless hardware South Africa



Wireless standard - wireless speeds

  • 802.11b up to 11Mbps
  • 802.11a/g up to 54Mbps
  • 802.11n (2.4GHz) up to 450Mbps
  • 802.11ac (5GHz) up to 1.3Gbps


Wireless standard - wireless coverage (distance, range)

  • 802.11b
    • Typical indoor range is 30 m (100 ft) at 11 Mbit/s and 90 m (300 ft) at 1 Mbit/s.
  • 802.11g 
    • Up to 38m indoors and 140m outdoors
  • 802.11n
    • Up to 70m indoors and 250m outdoors
  • 802.11ac
    • Asus claims 500 square meters compared to 400 square meters using their 802.11n devices. This is a 25% increase in range. There is not much data available at this time (January 2012).


801.11ac wireless / 5G Wi-Fi


It is very important to understand the throughput per device is 500Mbit/s maximum. This is nevertheless twice s fast as the 801.22n. This is close range. At greater distances, speeds can hit 50Mbit/s and 100Mbit/s which is still very fast and enough for hi-def streaming.


Theoretically, this specification will enable multi-station WLAN:

  • at minimum throughput of 1 gigabit per second on the device
  • a maximum single link throughput of at least 500 megabits per second (500 Mbit/s).


This is accomplished by extending the air interface concepts embraced by 802.11n: wider RF bandwidth (up to 160 MHz), more MIMO spatial streams (up to 8), multi-user MIMO, and high-density modulation (up to 256 QAM).


802.11n wireless


IEEE 802.11n-2009 is an amendment to the IEEE 802.11-2007 wireless networking standard to improve network throughput over the two previous standardsó802.11a and 802.11gówith a significant increase in the maximum net data rate from 54 Mbit/s to 600 Mbit/s (slightly higher gross bit rate including for example error-correction codes, and slightly lower maximum throughput) with the use of four spatial streams at a channel width of 40 MHz.


 802.11n standardized support for multiple-input multiple-output and frame aggregation, and security improvements, among other features.


802.11g wireless


IEEE 802.11g-2003 or 802.11g is an amendment to the IEEE 802.11 specification that extended throughput to up to 54 Mbit/s using the same 2.4 GHz band as 802.11b. This specification under the marketing name of Wi-Fi has been implemented all over the world. The 802.11g protocol is now Clause 19 of the published IEEE 802.11-2007 standard.


802.11b wireless


IEEE 802.11b-1999 or 802.11b, is an amendment to the IEEE 802.11 specification that extended throughput up to 11 Mbit/s using the same 2.4 GHz band. This specification under the marketing name of Wi-Fi has been implemented all over the world. The amendment has been incorporated into the published IEEE 802.11-2007 standard.
 
802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in their 802.11a, 802.11b, 802.11g and 802.11n versions to provide wireless connectivity in the home, office and some commercial establishments.


802.11b cards can operate at 11 Mbit/s, but will scale back to 5.5, then 2, then 1 Mbit/s (also known as Adaptive Rate Selection) when the signal weakens.


802.11a wireless


While 802.11b was in development, IEEE created a second extension to the original 802.11 standard called 802.11a. Because 802.11b gained in popularity much faster than did 802.11a, some folks believe that 802.11a was created after 802.11b. In fact, 802.11a was created at the same time. Due to its higher cost, 802.11a is usually found on business networks whereas 802.11b better serves the home market.


802.11a supports bandwidth up to 54 Mbps and signals in a regulated frequency spectrum around 5 GHz. This higher frequency compared to 802.11b shortens the range of 802.11a networks. The higher frequency also means 802.11a signals have more difficulty penetrating walls and other obstructions.



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