Trans-horizon wireless communication system using the tropospheric evaporation duct

A system for a trans-horizon wireless communication link using an evaporation duct over a sea comprising:

• (n×n) MIMO based transceiver microwave radio circuitry at both ends of the wireless communication link;
• two or more antennas arranged at each end of the wireless communication link within the evaporation duct, wherein the two or more antennas are vertically and/or horizontally arranged antennas and are placed within twenty-five meters above a mean sea level of the sea;
• and
• adaptive modulation and demodulation circuits coupled at each end of the wireless communication link to the transceiver microwave radio circuitry and the two or more antennas for varying pathloss conditions to achieve high availability and/or capacity for beyond line-of-sight distances of the wireless communication link within the evaporation duct.