Specifications

Bands	20, 17, 15, 12, 10, 6 meters or any combination
Antenna elements	2 per band
Gain (free space)	Peak Approx. 5.5 dBi (Peak Gain over gnd at 1/2 wavelength is approx. 9 dBi.)
Front/Back	Peak >20 dB  (varies by band)
VSWR	Less than 2:1 across nearly all bands
Feed line	50 ohms, single coax cable for all bands
Turning Radius	10.8 Ft  (3.3m)
Diameter of the beam	21.6 Ft
Height of the beam	39 in. (99 cm)  from base plate to top of center post
Weight	25 lbs (11.3kg) for beam equipped with all bands
Wind Load Area	5 Sq Ft  (0.46 sq m)
Power	2,000 watts
Mast requirement	Several mast sizes (See detailed discussion)

This is an EZNEC radiation pattern of a 20 meter hex beam 30 feet above ground. All bands have similar patterns when 1/2 wavelength above ground.