[TowerTalk] 160 - 80m "T"

[Steve Hunt]

Tim,

Some "rough and ready" EZNEC modelling suggests you need 40-45uH 
depending on the diameter of the vertical - I assumed the top was #14 
wire. Rrad is about 19 ohms.

73,
Steve G3TXQ

k3hx at juno.com wrote:
> I wish to put up a top-loaded vertical for 160m (1.83 MHz.)
>
> I can go 60 feet up and the top-loading "T" wire can be only 46'
> long overall.
>
> I'd be grateful for suggested values for a loading coil between the top
> of the vertical element and the middle of the horizontal "T" wire.
>
>
> Once I get the thing to operate properly on 160m, I'd like to use the
> same antenna on 80m (3.56MHz) and would appreciate suggested circuitry
> and values.
>
> Thanks.
>
> 72,
>
> Tim 
>
> Shameless plug:
>
> Michigan QRP Club Sprint
> 25 May 2009 2300Z - 26 May 2009 0300Z
> Google: MI-QRP for contest details
>
>
> ____________________________________________________________
> Free information - Learn about Financial Career Training. Click now!
> http://thirdpartyoffers.juno.com/TGL2131/fc/BLSrjnsM7aUIvVunoujzhUzHW1Eilgl5f42XdWCcT0AaJBn6LBS1RFWP9Us/
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>