I have this antenna up now. I went into it knowing it would be a bit of a
compromise but it was the best fit for the size and layout of the station when
I put it up. It is also nice for the 857/706/FT100 crowd because it uses a
single feedline which fits with the signal SO239 those rigs use for 2m/70cm.
Overall, I have been pleased with its performance given its size. I have
worked 350 miles on UHF with it on tropo, and made a few 800 mile plus QSOs on
2m during an Es opening.
It is currently getting a pretty good workout on the satellites, and I think
that is an area to also point beginners in VHF/UHF comms to keep up their
interest. Yes, 2m and 70cm SSB/CW terresterial is a blast and there is nothing
like a good band opening to really get you going, but those don't happen all of
the time. The satellites give you a chance to use your 2m/70cm equipment on a
daily basis, chase new grids squares and go for your VUCC. Plus it is
"predictable propagation." You know when the "band is going to be open" by
using the satellite tracking software.
I know this is a thread about getting new people into VHF contesting but I
think that also directing them to the satellite operation potential of their
SSB/CW gear may help to increase their interesting and keep them going between
contests and band openings.
73s John AA5JG
--- On Sat, 3/6/10, Tom Carney <tomc@carneysugai.com> wrote:
> For example, I recently modeled a dual band yagi that
> appears to be a
> Cushcraft A270-10S. This antenna has five elements on
> each band. The
> elements for one band are mounted above the boom, the other
> band below.
> Cushcraft quotes 10bdi gain for each band, but
> EZ-NEC predicted only
> about 8 dbi on 432. Remove the 2M elements from the
> model and the gain
> jumps over 2db.
>
>
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