Max transmit power wifi router11/3/2023 In fact, sometimes a 5-GHz 802.11n system provides the same or even greater range as compared to a 2.4-GHz system. In practice, the use of 5-GHz 802.11n, though, might or might not provide shorter range. As a result, the higher transmit frequencies of the 5-GHz band should provide shorter range than the lower 2.4-GHz band. ![]() Communications theory explains that (with all other things constant), an increase in transmission frequency causes a decrease in range of the signal. If the WLAN must provide signal coverage over a large open area where it is not feasible to install access points, for example, the use of higher-gain antennas and possibly amplifiers may prove worthwhile.įor details explaining how to determine signal coverage requirements, see Chapter 9, "Defining Requirements for a Wireless LAN." Radio Frequency BandsĪs part of the design, you can choose to use 2.4-GHz or 5-GHz (or both) 802.11n bands. This will give you a feel for the importance of maximizing the range. Review requirements that define the environment where the WLAN will operate and areas where signal coverage is needed. To maximize range and reduce the total number of access points, carefully consider the following design elements: ![]() 802.11n systems provide much better range and performance than legacy 802.11b and 802.11g networks, but there is fine-tuning that you can do. ![]() To satisfy signal coverage requirements, you will need to install access points in optimum locations based on the results of a wireless site survey, as explained in Chapter 15, "Performing a Wireless Site Survey." This involves completing propagation tests that determine the range of the access points based on specific minimum signal levels sufficient to support required client devices and applications.
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