What is the received signal level with a transmit power of 10 W (+40 dBm), a transmit antenna gain of 6 dBi, a receive antenna gain of 3 dBi, and a path loss of 100 dB?
Answer-51 dBm
Add transmitter power and antenna gains, then subtract path loss: +40 dBm + 6 dBi + 3 dBi - 100 dB = -51 dBm.