[amsat-bb] Arrow Antennas for terrestrial work

[Chris Thompson]

I had an arrow antenna outside for years on my roof in Brooklyn.  So in all
weathers.  +30C to -20C.  You need to seal the matching stub or water can
get in.  As others have mentioned the elements will seize in place and
rust.  So you can't take it down later and reuse it.  You have to cut the
elements off.  Otherwise they last a few years for sure.  So if you have a
spare one that is otherwise going to waste, you can use it.  Otherwise an
antenna designed for outdoor use is better.

73
Chris

On Mon, Jan 27, 2020 at 6:43 PM Fernando Ramirez via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> In my opinion, the Elk Log Periodic is better suited than the Arrow for
> permanent mounting.
>
> The downside is the gain on 70 cm compared to an Arrow. Even then, it will
> work. I used one during the June VHF contest and was able to work UHF with
> 20w to the same places I did on VHF with 50w (around 250 miles).
>
> A plus is having both bands on the same polarization.
>
> 73
> Fernando, KF7R
>
> On Mon, Jan 27, 2020, 3:58 PM Greg D via AMSAT-BB <amsat-bb at amsat.org>
> wrote:
>
> > Besides the mechanical issues that others have noted, one thing to
> > consider is that the 2m / 70cm elements are at 90 degrees from each
> > other.  If you want to mix repeater and weak-signal uses, you may need a
> > way to rotate the beam so that the polarization is optimized for the
> > band and use you are engaged in.
> >
> > Greg  KO6TH
> >
> >
> > John Geiger via AMSAT-BB wrote:
> > > Most of the reviews I have seen for the Arrow Antenna dualband yagis
> are
> > > regarding their use on the satellites, which I think is what they are
> > > mainly made for.  Has anyone on the list used one of their dualband
> > > antennas mounted permanently for terrestrial work as well?  They do
> sell
> > a
> > > mounting bracket for permanent mounting to a mast.
> > >
> > > Do they seem well made enough to withstand the outside elements for a
> few
> > > years on end?  Do they seem to perform as well as other antennas which
> > have
> > > approximately the same boom size and number of elements?
> > >
> > > 73 John W5TD
> > > _______________________________________________
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> > _______________________________________________
> > Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> Opinions
> > expressed
> > are solely those of the author, and do not reflect the official views of
> > AMSAT-NA.
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> >
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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-- 
Chris E. Thompson
chrisethompson at gmail.com
g0kla at arrl.net