A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss. If the cable is connected to an antenna with 9 dBi gain, what is the EIRP at the antenna element?

The correct answer is A. 23 dBm. 50/2 = 25mW (3db loss) 2522*2 = 200mW (9dbi antenna gain)

Radio Frequency (RF) Technologies

Question

Options

A23 dBm
B26 dBm
C13 dBm
D10 dBm

How the community answered

(51 responses)

A
82% (42)
B
10% (5)
C
4% (2)
D
4% (2)

Explanation

50/2 = 25mW (3db loss) 2522*2 = 200mW (9dbi antenna gain)

Topics

#EIRP#dBm conversion#antenna gain#cable loss

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