[amsat-bb] Tripod for Arrow

W3AB/GEO w3ab at yahoo.com
Wed Apr 24 22:04:22 UTC 2019


Can files be attached?

⁣___
Sent from my two way wrist watch
73 de W3AB/GEO​

On Apr 24, 2019, 12:58, at 12:58, KE6BLR Robert via AMSAT-BB <amsat-bb at amsat.org> wrote:
>Here is a link to a photo of the Arrow on the Amazon tripod:
>
>https://twitter.com/MachaleRobert/status/1121138773394255872
>
>On Wed, Apr 24, 2019 at 12:30 PM Ryan Noguchi via AMSAT-BB <
>amsat-bb at amsat.org> wrote:
>
>>  There have already been a lot of good comments on the list on why
>> handheld antennas work a lot better if you can manage it, and I'm
>> definitely in that camp. My experience with my home station (an Elk
>on a
>> tripod in the attic with an azimuth-only TV rotator and a fixed
>elevation
>> of about 18 degrees) also corroborates this, as I find that
>mismatched
>> elevation makes very little difference, but mismatched polarization
>makes a
>> huge difference.
>>
>> When I was confined to a fixed location, one trick that I've found
>helped
>> is to suspend the tip of the antenna to bear part of its weight. In
>my back
>> yard, I have strung up some horizontal (non-conductive) lines that
>are at
>> about the right height for me to hold the Arrow horizontal with my
>arm
>> extended and the tip of the antenna resting on the line, with line
>"hooked"
>> on the forward-most element. This saves a lot of fatigue on those
>long
>> portions of the pass when the elevation angle is low, provides added
>height
>> to reduce the workable elevation angle, and enables almost complete
>freedom
>> of rotation for polarization. I've used this approach with both the
>Elk and
>> the Arrow to good effect. It does require a little more practice and
>> attention with the Arrow due to the crossed geometry, but it was
>certainly
>> very workable. I have the lines strung out in three directions
>optimized
>> for different pass geometries, which was more useful for the Arrow
>than the
>> Elk. I don't use them much any more since I got over my fear of being
>> "outed" and started operating in full view of the public.
>>
>>
>> Operating completely pedestrian-portable is also very handy if you
>have to
>> move during the pass to clear obstructions or distance yourself from
>> (audio) noise sources. Operating writing-hand-free can be very
>doable, even
>> without VOX. I hold the antenna with one hand, and leave the other
>hand
>> free for tuning, logging in real time, pressing the earpiece PTT
>switch,
>> and occasionally holding an umbrella.
>>
>>
>> 73, Ryan AI6DO
>> _______________________________________________
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>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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