Hi Clive, thanks for the input! The existing 75 foot inverted L measures 26
ohms X=2 using 60 x 100 foot radials. This is very close to what the model
calculates.
Regards , Kenny K2KW
> On Jan 4, 2021, at 10:12 AM, clive@gm3poi.com wrote:
>
> Kenny a lot will depend on your ground system. If it is very good then that
> extra bandwidth may help.
> But if it is just medium quality, there will be sufficient loss not to bother
> until and if you improve your ground system. Try the bandwidth without the
> extra wires and see how it compares with the predicted bandwidth. 73 Clive
> GM3POI/GM3X
>
> -----Original Message-----
> From: Topband <topband-bounces+clive=gm3poi.com@contesting.com> On Behalf Of
> Kenny Silverman
> Sent: 04 January 2021 15:06
> To: TopBand List <topband@contesting.com>
> Subject: Topband: Cage wire performance
>
> Hello and HNY!
>
> I will be converting a wire inverted-L to a T top loading on a 75’ tall wire
> hung from a tree. To improve the bandwidth, I was wondering about going to a
> 2-wire “cage” for the vertical section. I’m actually modeling a skinny
> triangle where the wires connect at a point on the top, but with a 4 foot
> spread of the wires near the ground. This adds about 15-20 kc to the 2:1
> bandwidth per the model.
>
> Will a 2-wire section like this always behave as a wide/fat conductor or do I
> have to worry about voltage/current in Each wire?
>
> Regards , Kenny K2KW
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|