[TowerTalk] Topband: Radials on ground v FCP
Grant Saviers
grants2 at pacbell.net
Sun Jan 9 20:30:40 EST 2022
Agree with N6RK.
My T has 8x 125 elevated radials (b4 N6LF work) but is in trees, with
the significant losses and is hard to maintain, climbers are unobtanium
currently.
I am working on a self supporting 160 vertical for a clearing, top hat
loaded a with mid loading coil. With 3 elevated 125ft radials it is
within a fraction of db of more. Also, the land constraints has them at
290, 30, and 110 degrees which skews the pattern 1db towards EU, which
is a plus from WWA.
Grant KZ1W
On 1/9/2022 08:22, Richard (Rick) Karlquist wrote:
>
> On 1/9/2022 4:51 AM, CUTTER DAVID via Topband wrote:
>> Hi Rob
>>
>> I see copper prices have doubled in the last year.
>>
>> My intention is to compare and contrast the cost and performance of
>> short verticals over a large field of ground radials v the very modest
>> amount of wire required for the FCP. In Guy's article
>>
>
> This is a false dichotomy between FCP and a broadcast station ground
> screen. The best use of wire is to have a small number of elevated
> tuned radials with proper RF choking. As shown by N6LF, you can do well
> with just 8 radials, about 100 feet long each. On 160 meters, they
> should be 20 feet high for optimum performance. BTW, cheap aluminum
> electric fence wire works perfectly for elevated radials Also consider
> N6BT's single spiral radial configuration as an alternative to FCP.
>
> Rick N6RK
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
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