Path Loss

Path loss between the transmitter and receiver is a key consideration when designing a wireless LAN solution. Expected levels of path loss, based on the range between the transmitter and receiver, provide valuable information when determining requirements for transmit power levels, receiver sensitivity, and signal-to-noise ratio (SNR). Actual path loss depends on the transmit frequency, and it grows exponentially as the distance increases between the transmitter and receiver. With typical indoor applications, the path loss increases approximately 20dB every 100 feet.