Describe the approach that 802.11n (HT) takes to the implementation of the PHY layer.
What will be an ideal response?
HT utilizes a completely new approach to implementing the PHY layer. The 802.11n amendment uses multiple antennas along multiple radios in each device. This allows it to take advantage of multipath interference to actually increase the SNR, which results in an increase in the range and reliability of WLAN transmissions. Additional enhancements to the MAC layer, together with the changes to the PHY layer, help 802.11n achieve data rates that were not possible before.
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A. site surveys B. equipment plans C. bid forms D. utility plans
Being certified does not mean that a welder can weld everything, nor does it mean that every weld that is made is acceptable.
Answer the following statement true (T) or false (F)
The velocity of sound in air is equal to 1,130ft/s. Calculate the wavelength of a 2KHz signal.
Fill in the blank(s) with the appropriate word(s).
The remote bulb is fastened to:
A. The inlet of the evaporator B. The inlet of the condenser C. The outlet of the evaporator D. The outlet of the condenser