Re: ARLA/CLUSTER: Re: ARlllLA/CLUSTER: DX +Bouvet2 32211q322q 322q 2 nada antena vertical +351938747783 para 160m a a usada na Dxpetion à Ilha de Bouvet232

[Jorge Santos]

23 mts, queria ve-los fazer isso na minha de 25 mts heheheh

On 5 September 2017 at 15:12, CT1DQV . <ct1dqv.arat  gmail.com> wrote:

> LllllllllljllLllllll
>
> Em 04/09/2017 13:50, "João Costa &gt; CT1FBF" <ct1fbf  gmail.com> escreveu:
>
> The Bouvet Island 160m Vertical
>
> Tim Duffy, K3LR, reports: The DX Engineering and Bouvet Island teamsl
> have worked together to design an efficientllll 90 foot top loaded 160
> meter vertical antenna that can be installed quickly and sallllflely on
> Bouvet Ijsland by the 3Y0Z team this Janulteamslnullllaryllllllllllllll a
> good radial system the difference in gain between a 120 ft
> (fulll quarter wavelength) vertical and this l 90 foot top loaded
> vertical is less than 0.5 dB.
> JLlll vertical uses a custom designed heavy duty hinged pivot base with
> blase insulators to accommodate a 40 foot falling derrick 3 inch heavy
> duty pipe for installation.
>
> The vertical is base fed using two inductors to match to 50 ohms. The
> first 70 feet of the vertical is Universal Aluminum tower (12 inch
> face) and the top 20 feet is 1.875 inch diameter aluminum tubing.
>
> There are guys at 30, 50 and 70 feet. There are also three 30 foot top
> loading wires attached to the top of the tubing that are tied to
> anchors
> 60 feet out from the base.
>
> DXE is actually donating two of these vertical packages to the 3Y0Z
> team in case one gets damaged (there are 300 storms per year on
> Bouvet).
>
> More details on the construction and the final test raising plus VSWR
> measurements are shown in the video filmed and produced (in 4K Ultra)
> by Greg, W8WWV. https://www.youtube.com/watch?v=bSw-0TjaUiU
>
> OPDX
>
>
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-- 

73's
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CT1JIB / *Jorge Santos*
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