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Date: | Tue, 1 Mar 2011 07:14:21 -0600 |
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There is always the customary practice of laying out radials.
One of these days I've got ot get a better setup than a 10m dipole in the
attic.
Blair
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Subject: Re: NTC: GEC BRT 400S
From: Upton, Shawn
Reply-To: TechNet E-Mail Forum <[log in to unmask]>, Upton, Shawn
Date: Tue, 1 Mar 2011 07:38:35 -0500
Content-Type: text/plain
I've had decent luck with simple counterpoises. They are almost like making a
dipole, in that the wire is about the nominal quarter wavelength. Usually on
the rig itself, attached to its ground lug, used with a long wire for an
antenna. [Although if I have an unbalanced antenna (like a vertical, or an
inverted L) I have used them to keep RF off the transmitter, if I don't have a
good earth connection.]
I'd think for the ham bands a counterpoise for 80m and 40m would work well
(20m and 10m of wire, give or take), and might work well enough for all
bands. Length isn't critical, just run wires away from each other. And they
can be used inconjunction with any other grounding (earthing) scheme.
Shawn Upton, KB1CKT
Test Engineer
Allegro MicroSystems, Inc
[log in to unmask]
603.626.2429/fax: 603.641.5336
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