Phil,
If you use ground radials--wires lying on the ground--the length is not so
critical. Best to use as many as you can of ANY length, limited only by the
dimensions of your yard. If you use ELEVATED radials, you will need to tune
them to resonance.
My home station uses an inverted L with 16 ground radials, ranging from 10 to
40 meters in length. It works!
73,
Alan/K6SRZ
--- On Thu, 9/17/09, f5phw@free.fr <f5phw@free.fr> wrote:
> From: f5phw@free.fr <f5phw@free.fr>
> Subject: Topband: FO8RZ on top band
> To: topband@contesting.com
> Date: Thursday, September 17, 2009, 1:23 AM
> Hello to all.
>
> First sorry for my bad English language, you may find
> english mistakes in my post.
>
> I am FO8RZ Phil in Tahiti until 2011.
>
> I am running 100 watts only in CW and sometimes RTTY.
>
> I use yagi up 6 meters for 10-15-20, a inverse vee for
> 40-80, and HF6V (with warc kit) for 30-17-12.
>
> I took also from France the 160 meters kit.
> I used it in F, but it was very hard for me to contact
> stations out of Europe.
>
> Many stations asked me to operate on top band. So, I will
> install this week-end the 160 meters kit on the HF6V.
>
> I would like to know the length of the radials I have to
> use.
>
> My garden is not big, the antenna is close the neighbour,
> so impossible to put 150 radials on 360°.
> I fou want to see how is installed the antenna, go to
>
> http://f5phw.chez.com/plugins/diaporama/diaporama.php?lng=en&diapo_id=6
>
> On the butternut notice, they tell : L = 240/f
> L in feet
> f in Mhz
>
> For 1.820 Khz, it is 131.87 ft
>
> I think, I will be able to put only 2 radials.
> The first beamed to the 045 (USA) on 21 meters and after
> with a 90 corner to the right.
> The second one beamed to the 180 and with 1 corner and
> beamed after to the 045.
> My garden is not a big one.
>
> Is it better to use 1 radial beamed to 045 or 2 ?
>
> All the best 73
>
> FO8RZ Phil
>
> http://f5phw.chez.com/
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