What is the difference in dB between AP2 EIRP and AP1 EIRP based on the given data?

What is the difference in dB between AP2 EIRP and AP1 EIRP based on the given data?

• A. 1 dB
• B. 2 dB
• C. 3 dB
• D. 4 dB

Answer: (B)

The difference in dB between AP2 and AP1 EIRP is found by subtracting AP1’s EIRP from AP2’s EIRP. EIRP combines transmit power and antenna gain, so comparing two APs in the same environment basically asks which one radiates more power in that direction. If the data show AP2’s EIRP is 2 dB higher than AP1’s, the difference is 2 dB. That means AP2 would have a stronger radiated signal by about 2 dB at the same distance, assuming similar losses. The other listed differences would not match the given figures, so they aren’t correct for this data.

The difference in dB between AP2 and AP1 EIRP is found by subtracting AP1’s EIRP from AP2’s EIRP. EIRP combines transmit power and antenna gain, so comparing two APs in the same environment basically asks which one radiates more power in that direction. If the data show AP2’s EIRP is 2 dB higher than AP1’s, the difference is 2 dB. That means AP2 would have a stronger radiated signal by about 2 dB at the same distance, assuming similar losses. The other listed differences would not match the given figures, so they aren’t correct for this data.