[Antennas] Radial Wires VS a wire or screen mesh

[Idle-Tyme]

How high are the raised Radials?

Joe WB9SBD

*The Original Rolling Ball Clock
http://www.idle-tyme.com*



K1TTT wrote:
> I use 2"x4" mesh fence wire under my raised radials on my 80m 4-square.
> When I first did the installation I did measurements as I added radials to
> the first vertical and then as I rolled out 150'x4' in a cross pattern under
> the vertical.  There was much more change going from 4 to 8 raised radials
> than there was in adding the screen, but it did seem to help a bit.  The
> wire in that fencing is much heavier than chicken wire and I have gotten 5
> or 6 years out of it so far.  I roll it up in the spring so I can cut
> grass/weed under it and roll it out again before the fall contests and snow
> start flying.
>
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt at arrl.net
> web: http://www.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
>  
>
>   
>> -----Original Message-----
>> From: K2RS [mailto:K2RSonline at comcast.net]
>> Sent: Sunday, November 15, 2009 02:21
>> Cc: antennas at mailman.qth.net
>> Subject: Re: [Antennas] Radial Wires VS a wire or screen mesh
>>
>> The contest station with the chicken-wire ground system for its 160
>> antennas is always near the top of the multi-multi category in major DX
>> contests and manages to rack up lots of Qs on 160 meters. So, while the
>> chicken wire might not be optimal, it works in the real world and, in
>> the end, that's all that really counts.
>>
>> Jack   K2RS
>>
>> Terry Conboy wrote:
>>     
>>> This is probably fine as far as it goes.  The problem is that with only
>>> 4 rolls of chicken wire, there is still a lot of soil between the
>>> conductive mesh.  The idea of using a large number of wire radials is to
>>> provide a path for the RF displacement current back to the base of the
>>> antenna that only involves a very short distance for current flowing in
>>> the poorly conductive soil until it reaches a good conductor.
>>>
>>>       
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>
>
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