3种主流大功率无线网卡比较

3种主流大功率无线网卡比较 Analysis of wireless card, g-sky card and three mainstream high power USB wireless card quality At present, rub card sold on the market, which is the high power USB wireless network card, wireless router signal can crack the encryption password Dongdong, there are mainly three major brands: freeWIFI (wireless card), GSKY (g-sky) and WIFI-CITY (card). I. market share By market share, the three brands are roughly: FreeWIFI (wireless card) to occupy the market share of 33% GSKY (g-sky) accounted for 28% market share WIFI-CITY (card) to occupy the market share of 19% Other brands make up 30% of the market Two, receive signal distance FreeWIFI (wireless card) Standard Version and a deluxe version of the 2, the standard version of the standard 6DBI omnidirectional antenna, the actual received signal distance (in the residential environment, surrounded by other residential and office buildings such as an example) is about 700 meters, a luxury version of the configuration of the 6.5DB directional antenna, the actual reception distance of about there are about 1000 meters; if the cannon directional antenna with a 15DB, an actual distance of 2000 meters. GSKY (g-sky) common market is to configure the 5DBI or 6DBI omnidirectional antenna, standard edition configuration similar to the wireless card. The same residential environment, the wireless card and receiving distance roughly similar, at about 700 meters. But even the factory has 7~8, the quality is uneven, good quality can reach 700 meters, the poor quality of only 500 meters distance. This requires special attention from users. WIFI-CITY (card) on the market today are called new 8G power, known as 800MW. Through our software testing, while the power is in fact than 500MW (WIFI-CITY card) and GSKY (g-sky) must be high, but it is a little bit higher, and did not say 800MW, in addition, the new 8G standard card antenna is 2DBI omnidirectional antenna, although it occupies a slight advantage of its power, but in the far the antenna. After the actual test, in the same area of the environment, the new 8G card actually is only 650 meters. Three, failure rate We represent three brands at the same time, and we have a general idea of the failure rate of these three brands (the rate of revision in our shop) during the years we have been selling: FreeWIFI (wireless card) and WIFI-CITY (card) the revision rate is lowest, less than 1%, that is to say about the sale of the 100, with a maximum of 1 revision. However, the sales process, WIFI-CITY (card) appeared 2 times, fortunately, manufacturers are responsible for the initiative, told us not to sell out, have been sold out, timely to the customer to do the replacement. The wireless card has not been such a batch problem. Even the revision rate is about 3%, in the industry, this ratio is not high, we can accept the proportion of. Four, signal stability Signal stability refers to the number of dropped calls per hour after the connection to the network. I believe that friends who have used wireless networks know that when they are on the wireless network, they often encounter a sudden drop in line, which requires us to reconnect with the internet. There are three reasons: one is dropped the wireless routing line, lead to a wireless connection is dropped; the signal is too weak, meet environmental changes appeared slightly dropped; the last one is the product quality is stable, the outlet line. The first line, we can accept, because regardless of product problems; second barely received, but if the signal is weak because the product received signal weak result, then we should also criticize or complain about this product; third needless to say, it must be criticized. In this indicator, freeWIFI (wireless card) and WIFI-CITY (card) showed the best performance slightly inferior g-sky. Five, the price The price, even occupy the advantage, the general price of 180 yuan; freeWIFI (wireless card) Standard Edition Deluxe Edition of about 210 yuan, 260 yuan; WIFI-CITY (card) the price of the new 8G 230~260 (New 8G 230 yuan is definitely fake, please buy carefully on the market). There is a form of U disk like small card, the price of around 140, the king's power card is 200MW, the signal receiving ability in general the actual environment in 400 meters, the number of wireless signal search to other products is far less than 500MW. Comprehensive analysis above: Is the highest price of freeWIFI (wireless card), its market share will occupy the first for the majority of friends as can be imagined. The highest reputation but the price is the most expensive thing, also good is WIFI-CITY (card); suitable for hand loose, do not understand the market and buy a brand, the pursuit of simple friends. The price is the cheapest, things are still basically OK (must prevent some harm even the reputation of those g-sky, quality performance greatly hurt the brand). Suitable for temporary tight hand, intends to use one or two years still lost friends. As the general agent of the above three brands, it is my duty to share the advantages and disadvantages of my agent's products to my friends.