[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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