TAILIEUCHUNG - Wireless all- In-One for Dummies- P3

Wireless all- In-One for Dummies- P3:I still remember when I got my first cordless phone. Suddenly, I didn’t have to run to the kitchen when the phone rang, I just carried the phone with me. I could make a phone call from wherever I was. Wireless meant freedom, and this is just a phone that I’m talking about! | Going over the Letters 39 Another benefit to the dual band radios is that you can run your clients in the 5 GHz range and leave the GHz band to the g clients. This way you can make sure your speed-hungry devices aren t slowed down by legacy adapters. Compatibility concerns Wireless devices are generally downward compatible with other devices in the same frequency. Therefore you can mix and because they re both running at GHz but not with at 5 GHz. Keep in mind that just because something s compatible doesn t mean that it s going to run as well as it could. Even with an card 54 Mbit s remember you re limited to 11 Mbps on an network. When your access point s capabilities exceed that of the clients you still have problems. An access point will instruct all clients to operate in a slower compatibility mode if even one client is connected. has some protections to prevent this problem with legacy clients but still is not as fast as an only network. will coexist with as long as you ve got a dual band network card in your computer. This limitation isn t too much to worry about because network cards aren t terribly popular. Table 2-1 helps you make sense of the information in this section. Book II 2 Choosing Hardware Table 2-1 Frequencies Speed and Ranges Standard Frequency Speed Range Should 1 Look at 1t GHz 1-2 Mbps 100 No 5 GHz 54 Mbps 100 No GHz 11 Mbps 150 No GHz 54 Mbps 150 Yes Draft 2t GHz 54-300 Mbps 300 Yes 5 GHz 54-600 Mbps 300 Yes If you go down the path do your best to get dual band GHz and 5 GHz equipment. Make sure any gear you buy is certified by the Wi-Fi alliance. Check for the latest version of the standard. 40 Purchasing a Brand Name At the moment provides good speed and coverage and expands on that. If speed is a concern go .

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