Which signal and noise values will result in the best phone communication with an access point?
A.
signal strength 46dBm, noise level 95dBm
B.
signal strength 74dBm, noise level 94dBm
C.
signal strength 68dBm, noise level 79dBm
D.
signal strength 50dBm, noise level 56dBm
Explanation:
Values should have negative sign!
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80 dBm is 100kW like TX power of FM radio station, -80 dBm is a picowatt – typical RSSI of 802.11 RCVR
SNR in dBM=. signal in dBm – noise in dBm.
– 46 -(-95)= +49 DBm
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