Message-ID: <004001c2625d$51f0a080$7561063e@jackie>
From: "Steve Thompson" <steve@eltac.co.uk>
To: rsgb_lf_group@blacksheep.org
Date: Sun, 22 Sep 2002 18:27:25 +0100
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Subject: LF: Re: Re: Proximity effects
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-----Original Message-----
From: Vernall <vernall@xtra.co.nz>

>Steve,
>
>> I'm struggling with a poor set of options for an aerial at this house.
The
>> greatest vertical section I can get while still allowing top loading is
>> 8-9m, but the lower 3-4m would be up against brickwork. How much does
this
>> affect radiation compared with, say, 6m vertical clear of buildings (with
>> the same toploading)?
>
>It's fun trying, even if proximity effect robs you of a few dB.  Give it a
>go, assess results and then decide what betterment route to take.
Unfortunately, limited spare time and circumstances make aerial experiments
difficult - I'm going to have to live with whatever I choose for some time.

>From G3XDV:
>It depends what you mean by "up against". Good insulation is vital, but
>assuming you mean 100mm or more separation, there should be little problem.
Up against pretty much means up against, although after reading your
comments I'll see if I can work in some space. Very helpful, thanks.

>see http://www.f.thersgb.net/antenna.htm

A Freudian slip? :-)

Steve