Using AP2 specifications, what is the calculated EIRP?

Using AP2 specifications, what is the calculated EIRP?

• A. 26 dBm
• B. 30 dBm
• C. 20 dBm
• D. 10 dBm

Answer: (C)

EIRP is the effective power radiated in a given direction and is found by adding the transmitter output power and the antenna gain, then subtracting any system losses. In AP2 specifications, the maximum transmit power per radio and the antenna’s gain are the two numbers that determine this. If the AP2 radio can output 14 dBm and the onboard antenna provides 6 dBi of gain, with negligible losses in the path for this calculation, the EIRP works out to 14 + 6 = 20 dBm. That matches the calculated EIRP value of 20 dBm. If you had higher losses along the feed or used a different antenna, the EIRP would drop accordingly; a larger antenna or higher transmitter power would push the EIRP higher, but AP2’s documented values lead to 20 dBm.

EIRP is the effective power radiated in a given direction and is found by adding the transmitter output power and the antenna gain, then subtracting any system losses. In AP2 specifications, the maximum transmit power per radio and the antenna’s gain are the two numbers that determine this. If the AP2 radio can output 14 dBm and the onboard antenna provides 6 dBi of gain, with negligible losses in the path for this calculation, the EIRP works out to 14 + 6 = 20 dBm. That matches the calculated EIRP value of 20 dBm.

If you had higher losses along the feed or used a different antenna, the EIRP would drop accordingly; a larger antenna or higher transmitter power would push the EIRP higher, but AP2’s documented values lead to 20 dBm.