[UK-CONTEST] Fwd: Vertical radials
Ian GM4KLN
gm4kln at cairn-ltd.co.uk
Tue Oct 13 03:35:30 PDT 2009
Thanks Paul
Some great ideas in the Flickr for practical installation, which I'll
definitely emulate!
Intention is for the radials to bury themselves in the ground so currently
thinking bio-degradable pins....but I could easily use galv as you suggest
and remove them next year when the radials themselves have gone underground.
73, Ian GM4KLN
-----Original Message-----
From: uk-contest-bounces at contesting.com
[mailto:uk-contest-bounces at contesting.com] On Behalf Of Paul Beecham
Sent: 13 October 2009 11:18
To: uk-contest at contesting.com
Subject: [UK-CONTEST] Fwd: Vertical radials
---------- Forwarded message ----------
From: Paul Beecham <paul at attenuate.org>
Date: Tue, Oct 13, 2009 at 10:14 AM
Subject: Re: [UK-CONTEST] Vertical radials
To: gm4kln at cairn-ltd.co.uk
Hi Ian et all,
In the final stages of a radial project here please see some pics that
might be useful
http://www.g6pz.com/2009/09/22/80m-4-sq-radial-system/
The best thing that I have found to pin the radials down with is 3mm
galv fencing wire ( available on Ebay or B & Q etc ) bent to shape
while still on the coil and then cut to shape and hammered home over
the wire.
73 Paul G6PZ
On Tue, Oct 13, 2009 at 7:57 AM, Ian GM4KLN <gm4kln at cairn-ltd.co.uk> wrote:
> Thanks Jim
>
> Always nice to see how this all works out in the field. Glad the Hustler
is
> robust..that was part of the plan to be honest, given it is totally
exposed
> to westerlies (it will be guyed), plus it is relatively economical
compared
> to others on the market just now.
>
> It will be ground mounted radials, and it's a barefoot rig 100% CW so trap
> heating should not be an issue. The rain tends to cool them anyway.....
:-)
>
> Thanks again
>
> 73, Ian GM4KLN
>
> -----Original Message-----
> From: MM0BQI [mailto:MM0BQI at blueyonder.co.uk]
> Sent: 12 October 2009 22:33
> To: gm4kln at cairn-ltd.co.uk; 'UK-Contest'
> Subject: Re: [UK-CONTEST] Vertical radials
>
> Hi Ian
> I have a bit of experience with the Hustler, dragging it round most of
> Scotland over the past few years and it has served me very well! I am
sure
> the experts will fill you in on what you should do so I will just let you
> know what has worked for me.
> I have tried lifting the base and using raised radials (two per band)
which
> works okay but not enough to make me want to climb over lots of radials to
> get near the antenna.
> The 20 foot radials will work fine if you have lots of them. They should
be
>
> as long as you can manage, do not worry about specific lengths as tuning
> them will have no effect as they are so close to the ground. I usually
work
> with 8 or 16 shortish radials and add two or four at 10m if I can find the
> space. Not sure if this improves things but it makes me feel better!
There
>
> is a difference you can hear between 8 and 16 radials, I have gone as high
> as 32 but the additional improvement was not worth the effort.
> I believe the old adage applies that you should lay down as much wire as
you
>
> can in the space available, at least you will 'feel' you are then getting
> out as best you can!
> For 80m I ran a 66 foot wire to the top of the aerial then away to a
> suitable post. Even this very low inverted L knocked spots of the Hustler
> with the big loading couil at the top.
> My traps heat up with 150 watts during RTTY contests so maybe watch out
for
> that (I have the 5BTV and it is about 8 years old)
> Enjoy the antenna, I am sure it will stand up very well to the 'slight'
> breezes you have up there.
> 73
> Jim
>
> ----- Original Message -----
> From: "Ian GM4KLN" <gm4kln at cairn-ltd.co.uk>
> To: "'UK-Contest'" <UK-Contest at contesting.com>
> Sent: Monday, October 12, 2009 4:12 PM
> Subject: [UK-CONTEST] Vertical radials
>
>
>> Hi folks
>>
>> Just installing a 6BTV which will be at ground level on heavy, stony
>> Scottish Highlands ground. Radials will be permanent, and lain on top of
>> the
>> grass with a view to them disappearing into the ground by spring next
>> year.
>> Interest is DX, contesting: NVIS minimal interest. 80m is not a key goal
>> with this antenna - 20, 30, 40 are.
>>
>> There is enough room to get a 360 spread of 20' radials which will cover
>> the
>> near field fine.
>>
>> But over and above this: am I likely to get any practical benefit from
>> adding additional radials of 30' (in a bow-tie) or even 60' in certain
>> directions (i.e. diagonal in a rectangular plot)
>>
>> If so.....can these also be random length, or will tuned for lowest band
>> (80) reap benefit.
>>
>> Any sources of radial wire in the Highlands also welcome!
>>
>> 73, Ian GM4KLN
>>
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>
>
>
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