Another characteristic connecting Eastland’s weapon to Tesla’s Death Ray is illustrated in US Patent 5038664 , also issued to Eastland. It describes how a protective dome could cover a select surface of the planet. It works in the following way: One beam of circularly polarized electromagnetic radiation in the frequency range of 1800 to 3600 kHz forms the initial dome. A second beam in the range of 20 to 1800 kHz is then aimed at the top of the same region to further ionize the existing plasma. The second beam raises the mirror points of the existing plasma. The combination of these energy beams creates a protective dome of 20 million volts.