<div dir="auto">Interesting. After some research i found that the radials the factory sends are 10" long.<div dir="auto"><br></div><div dir="auto">Since i will have to roof mount the antenna (my property apparently sits on a huge granite boulder), i am trying to keep the experimentation down to a minimum, for obvious reasons. That's why I am looking for other HAM's experiences with it. Thanks!</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 17, 2023, 1:12 PM Paul Pellegrini <<a href="mailto:k1vk@yahoo.com">k1vk@yahoo.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-family:times new roman,new york,times,serif;font-size:16px"><div></div>
<div dir="ltr"><div><div>The size of the elements you are looking for is not that important. The elements will make an electrical circuit
known as a capacitance hat. This
addition to your vertical will make it resonate at a lower frequency. For instance, if your antenna resonates at 3.95
MHz, a capacitance hat might allow it resonate at 3.85 MHz. I had one of these HyGain antennas several years
ago and made my capacitance hat out of some spare director elements from an old
2 meter yagi. One final thing about HyGain
vertical antennas, they are quite narrow band, especially at 80 meters. You may only get 50 KHz of bandwidth without using
the antenna tuner whether you install a capacitance hat or not.</div><div><br></div>
<div>So, your question as to length, bigger may be better.<span> </span>It will allow you to decrease the antenna’s resonant
frequency to a lower number.<span> </span>Experiment
and see what is right for your needs.</div></div><div><br></div><div dir="ltr">73 de K1VK - Paul</div><br></div><div><br></div>
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On Tuesday, May 16, 2023 at 09:09:28 PM EDT, KC1SOZ <<a href="mailto:kc1soz@bd5.com" target="_blank" rel="noreferrer">kc1soz@bd5.com</a>> wrote:
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<div><div id="m_-6001376374719114709ydpbdfccd05yiv5748941149"><div dir="ltr">Does anyone here own, or know someone who owns, a Hy-Gain AV-12AVQ, -14AVQ or -18AVQ vertical antenna? I need to find out the length of the top hat radials that are installed at the top. Thanks in advance for any help.<div><br></div><div>73,</div><div>KC1SOZ Juan</div></div>
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