From the course: Wireless Networking Essential Training
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2.4 GHz channels
From the course: Wireless Networking Essential Training
2.4 GHz channels
- [Instructor] Wireless LANs typically use radio frequencies in one of two bands. There's the 2.4 gigahertz band and the five gigahertz band. In this video, let's consider the 2.4 gigahertz band. This band of frequencies is divided into different channels and we have five megahertz of bandwidth between each of those channels, with one exception. The exception is there's actually 12 megahertz of bandwidth between channel 13 and 14. However, channel 14 is only allowed in Japan and then it's only allowed when you're using the very old, 802.11b wireless standard, so you'll probably not ever encounter a wireless network using channel 14. But a big design consideration we have is preventing wireless access points from interfering with one another. To do that, we assign nearby access points to different channels. But there's a big point of confusion here, if you tell one access point to use channel one and another access point…
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