2.3 2.4 GHz vs 5 GHz

Question 1

2.4 GHz Spectrum

Answer 1

a. Long Range communications

b. better penetration through barriers

c. Slower data rates than 5 GHz

d. Higher rate of interference because longer range

e. 11 Channels in Total

Question 2

2.4 GHz Channels

Answer 2

Has 11 channels in total

Many devices us 2.4 = crowded

NON-overlapping channels = 1,6 & 11
— Offer the best chance of minimizing interference

Question 3

Wireless Channels

Answer 3

where data runs on
ONLY runs on 2.4 / 5 GHz

i. Lane of communication
ii. More people use = more crowded / slower

Question 4

5 GHz Spectrum

Answer 4

a. Short Range communication

b. Faster data rates than 2.4 GHz

c. Low chance of interference because of its shorter range

d. NOT many devices use 5 GHz

e. More channels the better

f. TOO much crowd = change the channel

g. poor penetration through barriers

Question 5

5 GHz Channels

Answer 5

has 45 in total & 24 non-overlapping

i. 20 MHz [bands] use Channels = 36, 40, 44, 48, 149, 153, 157, 161, 165

ii. 40 MHz [bands] use Channels = 38, 46, 151, 159

Question 6

Radio Mode

Answer 6

2.4 GHz 802.11n ONLY

Question 7

Radio Band

Answer 7

Wide – 40 MHz Channel

i. Can have primary & secondary channels
ii. Standard – 20 MHz channel
iii. Standard Channel [1]

Question 8

2.4 / 5 GHz

Answer 8

Devices receive communication on 2.4 / 5 GHz

Knows what data is for = phone, voice, etc