HPE7-A01 · Question #21
You are doing tests in your lab and with the following equipment specifications: AP1 has a radio that generates a 10 dBm signal AP2 has a radio that generates a 11 dBm signal AP1 has an antenna with…
The correct answer is C. 17 dBm. The calculated Equivalent Isotropic Radiated Power (EIRP) for AP1 is 17 dBm. EIRP is the measured radiated power of an antenna in a specific direction. It is equal to the input power to the antenna multiplied by the gain of the antenna. It can also take into account the losses…
Question
You are doing tests in your lab and with the following equipment specifications:
- AP1 has a radio that generates a 10 dBm signal
- AP2 has a radio that generates a 11 dBm signal
- AP1 has an antenna with a gain of 9 dBi
- AP2 has an antenna with a gain of 12 dBi
- The antenna cable for AP1 has a 2 dB loss
- The antenna cable for AP2 has a 3 dB loss
What would be the calculated Equivalent Isotropic Radiated Power (EIRP) for APT?
Options
- A26 dBm
- B30 dBm
- C17 dBm
- D-12 dBm
How the community answered
(39 responses)- A5% (2)
- B3% (1)
- C82% (32)
- D10% (4)
Explanation
The calculated Equivalent Isotropic Radiated Power (EIRP) for AP1 is 17 dBm. EIRP is the measured radiated power of an antenna in a specific direction. It is equal to the input power to the antenna multiplied by the gain of the antenna. It can also take into account the losses in transmission line, connectors, and other components. The formula for EIRP is: EIRP = P + G - L where P is the output power of the radio, G is the gain of the antenna, and L is the loss of the cable and connectors. For AP1, we have: P = 10 dBm G = 9 dBi L = 2 dB EIRP = 10 + 9 - 2 EIRP = 17 dBm
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