Great writeup and pictures/video Rob.
Your signal the second morning was very strong here.
Tree N6TR / K7RAT
On Mon, Jan 1, 2024 at 4:37 PM Rob Van Geen <rvangeen@gmail.com> wrote:
> Dave and I (Rob, NH6V) have been enjoying experimenting with antenna setups
> on the east coast of the "Big Island" of Hawai'i in several of the 160
> contests since December 2022.
>
> We run 1500W to a full-size 1/4λ wire sloping ~50° up to the top of a 150'
> Cook pine tree across the road from the beach. It runs off of two 130'
> elevated radials that run parallel to the coastline and perpendicular to
> the direction of North America and Europe.. 35°. The feedpoint is back
> about 25' from the ocean and it even gets occasionally hit by the large
> crashing surf (!). A pretty ideal antenna, as it turns out.
>
> For RX this year, it was necessary to deploy a single direction K9AY loop
> in order to null out a new, S-3 (at 3 kHz bw) power line noise
> emanating from the neighborhood about 1km to the northwest. We didn't
> experience this noise for the ARRL 160. Unfortunately, the noise is also
> coming from the same direction as Japan. So this ended up being our sole
> receive antenna, and we must say that it was most beneficial and kudos go
> out to K9AY for this especially innovative antenna design. Thank you, Gary!
>
> Driving 4' ground rods into the lava rocks wasn't too easy. There was also
> a good amount of seawater wetted sand to help lower the resistance - we're
> guessing no better than about 100Ω.
>
> Thanks for the QSOs! Your participation is greatly appreciated by all. We
> hope to continue operating from this portable location in all future 160
> contests.
>
> Look for our report with additional details on www.3830scores.com - to be
> updated within the next couple of days.
>
> Album with photos and some video:
> https://photos.app.goo.gl/5LC1srprU1F9SsTW9
>
> Rob - NH6V
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> Reflector
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