Specifications:

Boom Length-19.5 feet
Boom dia. -1 5/8 " dia. (does not taper)
No. of elements-11 vertical 11 horizontal
Freq. range-144-148 MHZ-optimized in Sat. band
Feed Point Impedance-50 Ohms
Power Handling-1000 watts (teflon baluns are standard)
Forward Gain-see plots above
Front to Back ratio-see plots above

This is designed for satellite operation and has circular polarization.(RHCP) Both sets of elements optimized in satellite band. The elements are spaced 1/4 wavelength on the boom and then fed with two phasing cables each cut to 3/4 electrical wavelength in the center of the satellite band and produces circular polarization. Unit is supplied with phasing lines and T connector. Antenna is constructed of the finest materials, 6061 corrosion resistant aluminum. Elements are 3/16" dia. except for the driven element which is 1/4" dia. (solid rods). Uses superior T match system and coaxial balun (RG 142U MIL SPEC.Teflon) for 50 ohm balanced load. Unit is CAD designed for the mechanical structure and computer optimized for electrical characteristics. These antennas are constructed with the utmost precesion. assuring you of top performance. All hardware is stainless steel except for U bolts which are Zinc Plated. Antenna is designed to last indefinately while providing superior performance.