Friday, May 29, 2009

10 Meter Monoband Antenna Comparison

10 Meter Monoband Antenna Comparison
(Modeling specs at 1 wavelength above real high accuracy ground with NEC2.)

Delta Loop Model
(Delta X-Ray 10 Meter DX10M01B)

3 Element Yagi Model
(ARRL Ant. book pg. 18-7 NBS rescaled to 10 meters)

2 Element Quad Model
(With 3/4 in. fiberglass spreaders, 8 ft. boom and no. 14 wire)

Delta Loop

Yagi

Quad

Primary Vertical Lobe Data

Gain (dBi)

12.89

14.39

12.67

Take off Angle (Degrees)

12

14

14

Beam Width (Degrees)

12.9

13.9

14.1

Secondary Vertical Lobe Data

Gain (dBi)

10.32

9.97

8.93

Take off Angle (Degrees)

40

42

44

Beam Width (Degrees)

16

18

20

Primary Azimuth Lobe Data

F / B Ratio (dB)

20.63

11.71

9.48

F / S Ratio (dB)

14.91

11.71

9.48

Beam Width (Degrees)

70

57.2

71.5

Physical Specifications

Weight (lbs)

9

13.8

16

Boom Length (ft)

3.5

14

8

Turning Radius (ft)

7.29

10.83

5.75

Effective Area (sq ft)

1.8

2.5

3.3

Effective Moments (ft-lbs)

66

149

117

Best Choice

Delta Loop

2nd Choice

Yagi

3rd Choice

Quad


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