[GCARC] Bob Erenburg KD3BGJ Needs Help

Fri May 29 08:32:25 EDT 2026

Also, this is an opportune time to announce that the July Tech Saturday project will be to build these antennas! Chris AD2CS has worked out the specs for the matching transformer that an end-fed halfwave dipole requires, so participants will be winding the toroids, assembling the waterproof box components to hold it, cutting the antenna wire to their desired length and then tuning it with a VNA outside (weather permitting). The cost will be somewhere in the $35 range. We’re still putting the details together but look for an announcement soon for the registration site to sign up for this project.

73 de Jon WB2MNF

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________________________________
From: gcarc-bounces at mailman.qth.net <gcarc-bounces at mailman.qth.net> on behalf of Tony Starr via GCARC <gcarc at mailman.qth.net>
Sent: Thursday, May 28, 2026 8:54:07 PM
To: Jeff One <djgrath1 at gmail.com>; villaproject12 at yahoo.com <villaproject12 at yahoo.com>
Cc: gcarc at mailman.qth.net <gcarc at mailman.qth.net>
Subject: Re: [GCARC] Bob Erenburg KD3BGJ Needs Help

Hi Bob,

As the club's designated "Antenna Elmer", I am happy to tell you that you
have several choices. A 40m End Fed Half Wave is 66 feet long, and will
work on 40m, 20m, 15m, and 10m, probably without an external tuner. An End
Fed Random Wire can be various lengths, and will work on several bands
using a wide range tuner. Your choice here may be decided by whether you
have such a tuner in your shack, or if you don't, whether you are willing
to buy one.

But before I go any further, let's first determine a few things, with a few
specific questions:  Which bands were you looking to operate?  And which
modes? How much power do you plan to run? Do you want to feed this antenna
using coax, or would you be up for trying some ladder line? How far would
the feed point be from the transmitter? And finally, what do you plan to
use this for, for example, DX work or just local or regional nets?

The answers to these questions will very likely affect the choice that you
ultimately make, so please reply the best that you can, and I will tailor
my suggestions toward your particular plans. I await your reply.

Tony K3TS

On Thu, May 28, 2026 at 6:32 PM Jeff One via GCARC <gcarc at mailman.qth.net>
wrote:

> All,
>
> Club member Bob Erenburg KD3BGJ needs help with antennas.
>
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> Submitted Information:
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> Name
> Bob Erenburg
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> Call Sign
> KD3BGJ
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> villaproject12 at yahoo.com <mailto:villaproject12 at yahoo.com>
>
>
> Comment
> I have about 75 feet to a tall tree. Any suggestions for non-kit, endfed
> long wire antenna?
>
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