High Performance, Long distance antennas using HF, VHF or UHF frequency bands to obtain optimum gain through control of take-off angle, voltage standing wave ratio and antenna pattern, including both parasitic and all-driven arrays [ as well as Yagi stacking systems and vertical array combinations ] which allow instant directional switching and simultaneous coverage of two paths [ ; Yagi phase boxes, vertical phase boxes, side mount phase boxes and remote coaxial switches ]

'all-driven':35 'allow':50 'angl':23 'antenna':5,29 'array':38,47 'band':12 'box':62,65,69 'coaxial':72 'combin':48 'control':18 'coverag':56 'direct':52 'distanc':4 'driven':37 'frequenc':11 'gain':16 'hf':7 'high':1 'includ':31 'instant':51 'long':3 'mount':67 'obtain':14 'optimum':15 'parasit':33 'path':59 'pattern':30 'perform':2 'phase':61,64,68 'ratio':27 'remot':71 'side':66 'simultan':55 'stack':43 'stand':25 'switch':53,73 'system':44 'take':21 'take-off':20 'two':58 'uhf':10 'use':6 'vertic':46,63 'vhf':8 'voltag':24 'wave':26 'well':40 'yagi':42,60

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