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Distance (m)

Electric

Magnetic

(see notes)

Field (V/m)

Field (A/m)

10

11.7

0.04

11

13.6

0.04

TABLE 11: STATION B

MEASURED FIELD STRENGTH: YAGI (5 ELEMENT) HF BEAM ANTENNA (21.2 MHz, 1000 W)

12

13.6

0.04

15

15.2

0.05

NOTES:

(1) Antenna mounted on roof of single story residence. Distances measured from point inside house directly under antenna mount. (2) Measurements made approximately 1 m above ground level outside of house. However, measurements at 15 m made approximately 1-2 m higher than other readings (relative to antenna) due to higher ground elevation at that point. (3) Electric field measured using Holaday Model HI-3001. Magnetic field measured using Narda Model 8631. (4) Measured values corrected using calibration factors and rounded off.

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