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Date: | Wed, 30 May 2012 17:50:42 -0400 |
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Colin,
A few of the more popular companies for loaded dipoles are: Alpha Delta,
Hy Power, and Spi Ro. Maybe some searches here will kick up something.
Anything loaded for 80 meters is going to have a serious limitation on
usable bandwidth without a tuner. But if he has a favorite band
segment, it could be tuned for that portion of the band.
Parallel dipoles can give a number of bands without a tuner,or traps,
but adding more wires may make it hard to put up and down multiple times.
Another option would be an off center fed (Windom type) antenna. Multi
bands, no traps and possibly only some need for a tuner at the high end
of 75 meters. Maybe too long, at 136 ft for 80 through 6 meters. Also
no resonance on 30 or 15. A 40 meter OFC is about 66 ft. long and of
course won't cover 80/75 as well as 30 and 15.
73, Steve KW3A
On 5/30/2012 1:56 AM, colin McDonald wrote:
> a friend is looking for a 10 to 80M trapped dipole requiring little or no
> tuner, that can be fairly easily deployed in the field.
> He's already got a tripple hussler arrangement on the RV, and an Icom long
> wire tuner.
> However, he now has a 40FT telescoping linemans poll stuck to the back of
> the RV that can be raised up to support the center of a bigger HF dipole.
> He doesn't really want to go the G5RV route due to the necesity of the
> latter line hanging down...he wants flexibility for various anchoring
> arrangements and easy deployment.
> Does anyone have any recommendations for a good 10M to 80M dipole that might
> fit these requirements?
> As I said, little to no tuning would be best.
> Though he does have a couple small LDG auto tuners that would make life
> simpler if the antenna needed a bit of tuning on the various bands.
> Either a prebuilt antenna, or any recommendations as to where one can
> perchase premade traps that can be used to build such a beast.
>
> 73
> Colin, V A6BKX
>
>
>
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