[Milsurplus] Milsurplus Digest, Vol 250, Issue 38

[Dennis Monticelli]

A 3/4 wave wire is resonant.  It's impedance is higher than for a 1/4 but
not high.  Say 100 ohm.  It should load fine.

On Wed, Feb 26, 2025 at 9:01 AM <milsurplus-request at mailman.qth.net> wrote:

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>    1. Re: grc109 into coax fed 1/4 wave 40m vertical (hwhall at aol.com)
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> Message: 1
> Date: Wed, 26 Feb 2025 06:02:14 +0000 (UTC)
> From: "hwhall at aol.com" <hwhall at compuserve.com>
> To: "milsurplus at mailman.qth.net" <milsurplus at mailman.qth.net>
> Subject: Re: [Milsurplus] grc109 into coax fed 1/4 wave 40m vertical
> Message-ID: <607136001.3975302.1740549734084 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
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> Per the manual, the antenna is supposed to be an end-fed inverted-L of
> 100ft total length.? 100ft is just 30.48 meters.? About 3/4 wavelength on
> 40m band.? That should present a fairly high impedance compared to a
> properly tuned 1/4 vertical with groundplane.? Perhaps the tuneup procedure
> in the manual is incorrect for that kind of antenna?
>
> Wayne
> WB4OGM
>
>
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> End of Milsurplus Digest, Vol 250, Issue 38
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