You shouldn't need tuned radials if you use a lot of them that aren't 1/2
wavelength long. If you think about it, they're all some impedance, and in
parallel.
Of course, cut to the right length is better, since you'd need fewer of
them.
On Tue, 19 Feb 2002, Randall Williamson wrote:
>
> Raised verticals require tuned radials or a grid type ground ie a metal
> roof or a screen with sufficient surface area to radiate a image of the
> vertical element.
> The power lines in the ally sounded like my installation I get a lot of
> power line noise from them. (good luck)
> I'm personally looking forward to getting my tower up and trying a
> inverted "V" the ant. I have now is a Butternut HF6Vx.
> I have a Timewave ANC-4 to help with the noise and it dose work but I'm
> going to try the outside Ant. For it, I hope it will be more effective.
>
> Randy
> AC7NJ
>
>
> -----Original Message-----
> From: owner-towertalk@contesting.com
> [mailto:owner-towertalk@contesting.com] On Behalf Of FireBrick
> Sent: Tuesday, February 19, 2002 3:22 PM
> To: TowerTalk List
> Subject: [TowerTalk] 80 meter vertical suggestion
>
>
> Ok Antennanites.
> Limited space.
> My best chance is putting a vertical on my non attached garage roof.
> That would make the base about 18 feet off the ground.
> I could mount it directly to the roof a the center, have some rope guys
> and
> lay some unfortunately short radials on the garage roof.
>
> I have the ON4UN book. What would be the best configuration for DX and
> contesting. I'm mostly a cw type.
>
> I'd like it to be a short as possible as the com ed power lines run
> through
> the alley and would be awfully close.
>
> I could put it on the house roof which would be a higher ridgeline but
> that
> would put it right close to my tower/yagi.
>
> ------------------------------------------------------------
> "The problem with the gene pool is there are no lifeguards."
> ------------------------------------------------------------
>
> Bill H. in Chicagoland
> w9ol@billnjudy.com
>
>
>
> ________________________________________________________________________
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>
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> ________________________________________________________________________
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--
Hisashi T Fujinaka - htodd@twofifty.com
BSEE (6/86) + BSChem (3/95) + BAEnglish (8/95) + $2.50 = mocha latte
________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes? The
same place that pays for the hosting of this list: The eHam Store.
Order online at http://store.eham.net.
-----------------------------------------------------------------------
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