Test-Page

Bands

20 / 17 / 15 / 12 / 10 m

Gain (dBd) *

4.8 / 4.9 / 4.9 / 5.0 / 5.1

Gain (dBi) **

12.1 / 12.5 / 12.6 / 12.7 / 12.9

Practical performance
(due to active radiation area)

20 to 12 m:    Like a 3 element monoband Yagi
10 m:             Better than a 3 element monoband-Yagi

F/B (dB)

24 / 22 / 22 / 22 / 24

SWR

All band ranges < 1.5

Elements (number)

14

Active elements

between 70 and 100% of the entire antenna area is operative

Max. element length

11.26 m (37 ft)

Boom length 

7.50 m (24.61 ft)

Turning radius 

6.65 m (21.82 ft)

Feed lines (number)

1 coaxial cable - 50 Ohm

Weight

58 kg (127.9 lb)

Wind load at 130 km/h (81 mph)

1272 N (286 lb) / 1.60 m2 / 17.22 sqft

* = average gain over dipole in free-space / for comparison: 2 el monobander 4 dBd, 3 el 5-6 dBd

** = average gain at 20 m above ground (= dBd + 2.15 dB isotropic + about 5 dB ground reflection)

Bands

20 / 17 / 15 / 12 / 10 m

Gain (dBd) *

5.4 / 5.4 / 5.4 / 5.4 / 5.7

Gain (dBi) **

12.8 / 13.0 / 13.1 / 13.2 / 13.5

Practical performance
(due to active radiation area)

Better than a 3 element monoband Yagi

F/B (dB)

35 / 35 / 38 / 33 / 35

SWR

All band ranges < 1.5

Elements (number)

16

Active elements

Between 70 and 100% of the entire antenna area is operative

Max. element length

11.38 m (37.34 ft)

Boom length

10.10 m (33.14 ft)

Turning radius

7.58 m (24.87 ft)

Feed lines (number)

1 Coaxial cable - 50 Ohm

Weight

80 kg (176.4 lb)

Wind load at 130 km/h (81 mph)

1471 N (331 lb) / 1.85 m2 / 19.91 sqft

* = average gain over dipole in free-space / for comparison: 2 element monobander 4 dBd, 3 el 5-6 dBd

** = average gain at 20m above ground (= dBd + 2.15 dB isotropic + about 5 dB ground reflection)