Antenna diversity, also known as space diversity, is any one of several wireless diversity schemes that use two or more antennas to improve the quality and reliability of a wireless link. Often there is not a clear line-of-sight (LOS) between transmitter and receiver, especially in urban and indoor environments. Instead, the signal is reflected along multiple paths before finally being received. Each of these bounces can introduce phase shifts, time delays, attenuations and even distortions that can destructively interfere with one another at the aperture of the receiving antenna. Antenna diversity is especially effective at mitigating these multipath situations. This is because multiple antennas offer a receiver for several observations of the same signal. Each antenna will experience a different interference environment. Thus, if one antenna is experiencing a deep fade, it is possible that another has a sufficient signal. Collectively such a system can provide a robust link. The antenna diversity scheme on the Microchip AT86RF232 2.4GHz RF transceiver uses two antennas to select the most reliable RF signal path. This is done by the radio transceiver during preamble field search without interaction of the application software. Both antennas should be carefully separated from each other to ensure highly independent receive signals.