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<font face="Verdana">MANY thanks to all who replied privately to my
original plea!<br>
<br>
I go the thing (80m EFHW) up this weekend following the design on
the OCFMasters website. Well... partial success. Granted, I'm
still waiting for the cap that goes across the primary at the 39:1
matching xformer/balun and that it is still very low, only about
8ft above the ground at the lowest point.<br>
<br>
The SWR at a useful point in the band (measured at the choke) is
OK on 80, 40 and 10, but really quite bad everywhere else.<br>
<br>
The missing cap is due from Digikey today. Stay tuned... (pun
intended)<br>
<br>
73, Tim - KC1RET<br>
</font><br>
<div class="moz-cite-prefix">On 9/22/2022 23:59, Jim Idelson wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CANvg0V5pWO0D3+wF7-Mz_eO6YPyXCCmTOgws+dYmo4_Xa-R79g@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">The 'effective electrical length' of the wire is
influenced by several parameters. One of them is the physical
length. Others include the type of wire, the insulation and the
height above ground. Hard to know what that little loop from the
main wire to the balun will do. You don't actually know that
electrical length for sure until you measure it with a signal
applied from your antenna analyzer or transmitter.
<div dir="auto"><br>
</div>
<div dir="auto">So, here's the Pro Tip: <b>Always make the
initial cut on the long side - a good foot to eighteen
inches.</b> It's a whole lot easier to trim bits off than it
is to add length of you cut it too short.<br>
<br>
<div data-smartmail="gmail_signature" dir="auto">73 Jim K1IR</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Sep 22, 2022, 8:59 AM
Tim KC1RET <<a href="mailto:kc1ret.radio@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">kc1ret.radio@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div> <font face="Verdana">OK, time for newbie question...<br>
<br>
When measuring the length of a wire antenna element, such
as an EFHW, do you include or ignore the bit from the end
insulator to the terminal of the balun?<br>
<br>
Yes, I know, it will only amount to 4-6 inches but I'd
rather get it right from the start than have to add/trim
later.<br>
<br>
Thanks!<br>
<br>
Tim - KC1RET<br>
</font>
<div>-- <br>
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<p style="font-family:Verdana, Geneva, sans-serif; font-size:10px;
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<p>"Computers are incredibly fast, accurate and stupid;
humans are incredibly slow, inaccurate and brilliant;
together they are powerful beyond imagination." -- <i>Albert
Einstein</i></p>
<p style="font-family:Verdana, Geneva, sans-serif;
font-size:10px; -webkit-margin-after:.5em;
-webkit-margin-before:.5em">Warning: Spelling errors in
this message are the product of a poor school system.
Pay teachures more than athletes.<br>
IMPORTANT: This email is intended for the use of the
individual addressee(s) named above and may contain
information that is confidential privileged or
unsuitable for overly sensitive persons with low
self-esteem, no sense of humor or irrational religious
beliefs. If you are not the intended recipient, any
dissemination, distribution or copying of this email is
not authorized (either explicitly or implicitly) and
constitutes an irritating social fauxpas. No animals
were harmed in the transmission of this email, although
the mutt next door is living on borrowed time, let me
tell you.</p>
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