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TABLE 5: STATION A

ELECTRIC FIELD STRENGTH: "HALF-SLOPER" DIPOLE ANTENNA

Under antenna

HI

--

--

46

22

14

8

5

--

Opposite antenna

HI

39

--

12

6

3

--

--

--

Perpen. to antenna

IFI/HI

--

--

(40)

16

11

--

8

4

IFI

--

--

(50)

(21)

(11)

--

--

--

IFI

(59)

--

(14)

(9)

--

--

--

--

IFI

211

(87)

(32)

(14)

(9)

--

7

--

21.15 MHz (800 W) Under antenna Opposite antenna

HI HI

In "ham shack"

HI

21.15 MHz (1000 W) Under antenna Opposite antenna

*

HI HI

-- -- 57 36

25

15

10

--

57 -- 9 3

--

--

--

--

64

*

10

*

FREQ (POWER)/

RADIAL DIRECTION

OR LOCATION (see notes)

14.15 MHz (1000 W)

[1-1.7 V/m @ operator position] [4.5 V/m localized in front of amplifier]

40*

27*

17*

11

--

3*

--

--

--

--

7.15 MHz (1000 W)

10.0

--

--

64*

--

Under antenna Opposite antenna

Perpen. to antenn

a

FIELD STRENGTH (V/m) [1 m above grd]

INSTR. USED

DISTANCE ALONG RADIAL (m) [if applicable]

<0.5

0.5

1.0

2.0

3.0

4.0

5.0

21.15 MHz (1000 W) Perpen. to antenna

HI

--

96

48

28.15 MHz (100 W) Under antenna Opposite antenna Perpen. to antenna

HI HI HI

-- 23 84

-- -- --

26 11 23

*

28.15 MHz (1000 W) Under antenna Opposite antenna Perpen. to antenna

HI HI HI

71* -- 266*

-- -- --

82 33 73

15

9

3

--

--

7

4

3

--

--

11

6

--

--

--

______________________________________________________________________________________ NOTES: (1) Radial directions from antenna base were: (a) parallel to ground and directly under sloped antenna; (b) parallel to ground and away from antenna in opposite direction; (c) parallel to ground and perpendicular to antenna. (2) Measured values corrected using calibration factors and rounded off. Parentheses indicate average of two or more corrected readings. (3) * = estimated values (not measurements), for purpose of comparison, based on normalization from 800 W (21.15 MHz) data or from 100 W (28.15 MHz) data.

  • (4)

    Dashes = not measured.

  • (5)

    IFI = Instruments for Industry Model EFS-1 field strength meter; HI = Holaday Industries Model HI-3001

broadband field intensity meter.

21

14

--

7

3

-- -- --

28

*

13

*

17

*

47

*

22

*

35

*

9

*

9

*

* * *

--

-- -- --

15

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