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44 / 70

14

110

204

16

100

161

18

137

156

20

137

140

22

137

125

24

201

63

26

237

49

28

228

37

30

228

49

32

228

73

NOTES:

  • (1)

    IFI Model EFS-1 field intensity meter used for E field readings.

  • (2)

    Calibrated loop antenna+HP power meter used for H field readings.

  • (3)

    Measurements made appx. 1 m height above ground.

  • (4)

    Measured values corrected for calibration error and rounded off.

  • (5)

    Dashes = not measured.

  • (6)

    * Antenna consisted of two-wire, open-line shorted at transmitter end. Antenna extended horizontally

out from ham shack, curved around to follow walkway, and curved again before turning upward to meet perpendicular "T" radiator 21 m above ground. (7) ** Ground-level distance underneath horizontal portion of antenna with 0 m = point beneath vertical segment. Height above ground of horizontal segment generally varied from 2 to 3 meters. (8) ***Confirmation reading with Aeritalia Model TE 307 = 259 mA/m.

0

52

159

2

110

283

4

128

307

6

137

302

8

146

283

10

128

251

12

100

212

>32 (antenna changes direction & loops around to enter ham shack)

183

>32 (at feed-point where antenna enters ham shack

--

TABLE 18: STATION F

F I E L D S T R E N G T H : " M O D I F I E D T " A N T E N N A * (1.945 MHz; 500 W)

D I S T A N C E ( m ) * *

E FIELD (V/m)

H FIELD (mA/m)

192

202***

13 (antenna changes direction)

91

561

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

35

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