[50mhz] antenna
Bill W5WVO
w5wvo at cybermesa.net
Mon Feb 4 08:40:40 EST 2008
Lloyd,
There's more to upgrading a yagi than forward gain! The main thing you get for
going to a better-designed antenna is a better azimuth pattern, which means a
higher front-to-rear ratio and fewer/smaller sidelobes. This translates into a
lower overall noise floor, which means you can HEAR better. And if you can
hear better, you're going to work more weak signals -- if they can hear you.
Thus, hearing better can even be a valid justification for increasing your
transmit power commensurately so that the weak ones CAN hear you.
Personally, I prefer to model and optimze my own yagis, but the 6M7jhv is
pretty darn optimized already. :-) I'd go with that one. (And then, given
knowledge of own my installation height, I'd model it and tweak with it. But
that's just me.)
Bill W5WVO
Lloyd C. Curry wrote:
> I am planning to replace my old Cushcraft 6 el yagi with a newer
> antenna. I am leaning toward either the M2 6M7 or 6M7jhv. I like the
> idea of the 6M7 because it is heavier but there is not much
> difference in gain. Anyone have any other comments? Thanks Lloyd, NA4D
>
>
> Moderator: Ray Brown, KB0STN
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