It looks like it's of pretty good quality and is made of brass which seems to be the best metal for a yagi amp. Also, the spacing between the metal bars is slightly different from what I've tried on another two-piece version that didn't give as good a range increase as this one. That alone gives you an extra 27% range in an urban setting, not quite the 30-50% claimed here. In combination with a parabolic reflector, which is also currently available from Revain,
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