Wireless Network Technologies Flashcards
What frequencies do 802.11 technologies use?
802.11 technologies use 2.4 GHz, 5 GHz, or both frequencies.
What are the channels in 802.11 technologies?
Channels are groups of frequencies numbered by the IEEE, with non-overlapping channels being ideal.
Why are there regulations for 802.11 technologies?
Most countries regulate 802.11 frequencies to manage spectrum use, power output, and interference requirements.
What are the key points of Bluetooth technology?
Bluetooth removes the need for wires in devices like headsets, speakers, keyboards, and mice.
What frequency range does Bluetooth use?
Bluetooth uses the 2.4 GHz range, which is the same as 802.11 and falls within the unlicensed ISM band.
What is the typical operating range of Bluetooth devices?
Most consumer Bluetooth devices operate within 10 meters, while industrial Bluetooth devices can communicate over 100 meters.
What are the available channels in the 2.4 GHz spectrum for 802.11 in North America?
Channels 1, 6, and 11 are available in the 2.4 GHz spectrum, ranging from 2412 MHz to 2482 MHz.
What are the available channels in the 5 GHz spectrum for 802.11 in North America?
The 5 GHz spectrum includes channels 36 to 177, with bandwidths of 20 MHz, 40 MHz, 80 MHz, and 160 MHz.
