Energy Levels (signal levels) required for standard WiFi operations

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Sep 4, 2022
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WiFi Energy APP

WiFi Signal – Energy Levels (signal levels) required for standard WiFi operations

App demonstrates RSSI levels (received signal strength indicator).

WiFi Signal levels are based on manufacturers access point data specifications.

Intense WiFi signals, Waste Energy, Waste Spectrum & cause Interference Issues with nearby networks.

RSSI example:

-70dBm = Signal required for Max Data Capacity.

-10dBm Signal = 1,000,000 times more energy than -70dBm.

Examples of excess energy consumption of different WiFi signal levels

RSSI -70dBm = Max Signal Required (2.4Ghz).

-60dBm = 10 times more energy.
-50dBm = 100x
-40dBm = 1,000x
-30dBm = 10,000x
-20dBm = 100,000x
-10dBm = 1,000,000x

RSSI values based Irish Primary & Secondary school APs (Fortinet 822x & Aruba 34X).

Fortinet 822x & Aruba 34x have the following RSSI data specifications:

2.4Ghz
802.11b =-91dBm & -97dBm (lowest signal)
802.11n = -71dBm (HT40) (strongest signal)

5Ghz
802.11a =-77dBm & -74dBm
802.11n =-70dBm & -68dBm (5Ghz, HT40)
802.11ac = -55dBm (5Ghz, VHT 160Mhz)
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