Let’s take a look at how radio waves are used to transport data between two devices, bearing in mind that I’m only taking into consideration the 802.11 standards that are covered within the CCIE Wireless exam. The process used to transport data is called modulation which essentially creates a pattern that is imprinted onto a wave by the transceiver and …
IEEE 802.11 Fundamentals – The Sea of Waves
So we’ve looked at what a wave is but now I want to talk about what frequencies these waves use. In the 802.11 space we generally use the Industrial, Scientific and Medical (ISM) 2.4Ghz and 5Ghz bands but sometimes the 4.9Ghz band is also used for public safety applications. Each 802.11 standard can be deployed within certain bands that are …
IEEE 802.11 Fundamentals – Understanding the Wave
Ok, again I’ve been late posting but in my defence I’ve been away for a while and I’ve also attended a conference over East for a few days which scuppered my blogging plans. I know it’s not a good start but I actually have put together a number of posts into docos that I will post over the coming days. …