> I thought maybe a Bazooka (Coaxial ) Dipole might fit the bill for 80m
> band.
> However after checking various links I noticed that there seems to be some
> disagreement on what design to use. I thought maybe some of you have
> tried
> these different designs and could help me decide which of these designs
> are
> the best ? I would like to build one for 80m and another for 40m. Also
> what kind of coax is best to build them with rg-58u or rg 8x? Any
> comments
> or suggestions are greatly appreciated. Thank You for reading.
>
>
> ::Having built, installed and used many "bazooka dipoles" for the lower HF
> bands over the years, my conclusion is they don't work any better than
> ordinary wire dipoles, offer about 15% greater bandwidth than ordinary
> wire dipoles, and are more fragile and difficult to keep in the air than
> wire dipoles. To achieve greater bandwidth on the broad lower HF bands
> like 80m and 160m, I now prefer to build multiple wire dipoles using
> ladder line or other parallel conductors, cutting the conductors to
> different lengths to cover more of the bands....can result in a dipole
> that has multiple resonances at, say, 3.5 MHz and 4.0 MHz, and thus
> literally cover the band with VSWR <2.0, not achievable with the "bazooka"
> or conventional ordinary wire dipoles. The old "bird cage" type dipole
> using several parallel conductors to form a very "fat conductor"
> accomplishes the same thing but is heavier and more difficult to construct
> and install. -WB2WIK/6
>
>
>
>
> 73
>
> Kenny
>
> kg5ks@arrl.net
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
> any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
|