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AMATEUR STATION D

Station D was located at a two-story residence. Two antenna systems were studied.

(1) Tower-mounted Yagi

A three-element, tri-band, Yagi antenna was mounted on a tower next to the house. The height of the tower could be adjusted so that the height above ground of the antenna ranged from about 8 m to about 21.6 m. Frequencies examined using this antenna were 14.15 MHz and 28.5 MHz, and measurements were made both inside and outside the house. Measurement results are given in Table 14.

(2) Roof-mounted Yagi

Also at Station D, field strength levels resulting from a roof-mounted, Yagi antenna operating at 50.12 MHz were examined. This antenna was mounted approximately 3 m above the roof and almost directly above the second-story "ham shack." Measurements with respect to this antenna were made only in the ham shack. Measurement results are given in Table 15.

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