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Re: [TowerTalk] Antenna resonance question

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Subject: Re: [TowerTalk] Antenna resonance question
From: Steve Hunt <steve@karinya.net>
Date: Tue, 13 Dec 2016 16:45:52 +0000
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You need to define what you mean by "ring".

The antenna will see a conjugate match at 1.85MHz (not 2.24MHz) looking back towards the station end, but I don't know if that's what you mean by "ring"?

Steve G3TXQ



On 13/12/2016 08:05, Matt wrote:
Hi folks - need some help.    A shortened 160m vertical ground plane antenna
is cut and tested for a resonant frequency of 2.24 Mhz.   The antenna is
matched near perfectly to 50 + 0j ohms at 1.85 Mhz using a shorted coax stub
of appropriate length placed at the appropriate location along the feedline.
With a 50 ohm dummy load attached to the station end of the feed line, will
the antenna be resonant (ring) when externally excited at 1.85 Mhz or 2.24
Mhz?

Thanks in advance for any insight you can offer.

Matt

KM5VI

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