Candidate Locations for SPS Rectifying Antennas 1977

2. Name of counties impacted. 3. Average population density of each county. 4. Elevation characteristics and land use at each rectenna site. 5. Road, railroad, and river impacts. 6. Distance from each rectenna to a utility tie. 7. Pertinent comments. Elevation characteristics [10] and land use [5] keys (Tables A-2 and A-3) are given in the appendix. Figure 42 shows an overview of the distribution of the 120 rectennas through the 9 regions of the country, and statistics on the number of land rectenna sites in each region and the percent of the national population, electrical use, and land area in that region are given in Table 1. C. Summary of Results The preliminary population density survey yields an overly pessimistic population displacement profile due to the use of average county population densities. However, even using these averages, only 0.19 percent of the population of the U.S. or 407 000 persons would be displaced by the 69 land rectennas. The national power grid survey yields an average distance of 30 miles from the rectenna to an existing major power network tie. This result is illustrated in Figures 43 through 49 where rectenna locations are overlayed on charts of the national power grid [ 12 ]. The preliminary elevation characteristics survey indicates that elevation variations of at least 1000 ft and possibly up to 3000 ft can be expected. As previously stated, more work must be done to avoid these large elevation variations where possible and to quantify more precisely those variations which still exist. The transportation analysis shows that the average rectenna covers 16 miles of secondary roads (with one exception where a primary road is covered) and no major rivers or railroads. This indicates that rectenna impact on existing ground transportation networks is minimal. (However, if the microwave beam interferes with air traffic, the impact on air transportation is substantial.)

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