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TABLE 25: STATION H

F I E L D S T R E N G T H : H O R I Z O N T A L L O O P A N T E N N A 1

DIST (m)2

3.7 MHz (100 W)

7.1 MHz (100 W)

14.15 MHz (26 W) (100 W)3

21.02 MHz (100 W)4

28.2 MHz (100W)

1 2 4 6 8 10 (corner of house) 12

7.9 8.8 7.9 8.4 11.6

2.1 4.2 4.5 4.3 3.5

2.2 1.9 1.7 1.2 1.1

4.3 3.7 3.7 2.4 2.2

6.0(6.3) 4.5(5.0) 1.6(1.4) 0.5 0.9 0.8 0.6

5.6 3.9 1.4

10.8 7.0

5.2 9.8

2.4 1.1

4.7 2.2

2.2(2.2) 1.6(2.2)

3.4 2.1

  • I.

    Measurements under antenna segment along side of hou :e

  • (a)

    E FIELD (V/m); @ appx. 1 m ht abv gr:

1

21

11

3

7

12

15

2

18

11

4

8

9

13

4

29

11

3

7

5

9

6

40

10

4

7

5

5

8

31

13

4

8

5

2

3.7 MHz

7.1 MHz

14.15 MHz

21.02 MHz

28.2 MHz

DIST (m)2

(100 W)

(100 W)

(26 W)

(100 W)3

(100 W)

(100W)

of house)

34

12

12

24

8

8

12

31

12

8

15

10

5

(b) H FIELD (mA/m); @ appx. 1 m ht abv gr:

10 (corner

II. Ambient measurements in backyard at appx. center of loo:p

E FIELD: 1 - 3 V/m

H FIELD: 3 - 5 mA/m

______________________________________________________________________________________

NOTES: IFI Model EFS-1 field intensity meter used to measure E field (except see note 4 below). Calibrated loop antenna+HP power meter used to measure H field. Readings corrected for calibration error & rounded off. Dashes = not measured. Full-wave loop (appx. 80 m wavelength @ 3.75 MHz). Large rectangular antenna extending over single-story house and around edge of backyard. Distance measured under antenna segment along side of house with 0 = appx. location under antenna feed-point (appx. NW corner of antenna). Total length of antenna segment (one of four) = appx. 21 m. Field strength normalized to 100 W. Values in parentheses obtained using HI-3001 meter for comparison. 1 2 3 4

[TABLE 25 continued next page)

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