<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Is that balun something that came with the antenna from the manufacturer, or something homebrewed by another ham? If it is from the manufacturer it is probably engineered to be OK as long as you are not running an amp, but it does not look that heavy-duty. Looking at your photo and counting distance between studs (16”) and doing the trigonometry, it looks like about 9 feet or so of coax you would have to add to get the balun out of the house. How much coax do you already have in line in your room?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If the balun you have is not suitable, a W2AU brand 4:1 balun may be a suitable alternative; that is what I have used, and it is an “industry standard”. Though I am not suggesting you hack up your antenna if it came together as a unit. I do not know the specs of it; it may be fine. See what others have to say.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>One thing you may run into is that adding coax may put the match out of range of your tuner at some frequencies. But there is a trick you can play. Have several assorted lengths of coax jumpers available (6 feet, 12 feet, etc.) and enough barrel connectors to swap some or all them in and out by experiment. You might be able to find a combination that works on all the bands you operate.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Again, radio station NF1A welcomes the “”presentation of contrasting points of view”.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>-Art<o:p></o:p></p><p class=MsoNormal>NF1A<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> bars <bars-bounces@w1hh.org> <b>On Behalf Of </b>Jason Sanroma<br><b>Sent:</b> Sunday, July 3, 2022 4:00 PM<br><b>To:</b> William Smith <w_smith@compusmiths.com><br><b>Cc:</b> bars@w1hh.org<br><b>Subject:</b> Re: [bars] Cobra Ultralite Balun<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Once it enters the house it goes into a crawl space (cubby hole) and then through the wall into my shack. It goes through a balun but I am not sure the specs of it and I believe it is not suited for this use, but I needed one to use the LDG auto tuner. I will provide some pictures to show what I am talking about.<o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div></div><div><p class=MsoNormal>The pictures show: The balun front and back, I am not sure the type of balun it is. Then, the crawl space where it comes in and then the window line going through the wall after that it shows it coming out of the wall. There are a few other wires that are labeled such as the coax for the Super big stick for 10m, my Diamond X-50A (2m/440) and ethernet. I am not sure if the other lines can affect the VSWR.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>73,<o:p></o:p></p></div><div><p class=MsoNormal>Jason<o:p></o:p></p></div><div><p class=MsoNormal>K1NAD<o:p></o:p></p></div><div><p class=MsoNormal><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>On Jul 3, 2022, at 9:19 AM, William Smith <<a href="mailto:w_smith@compusmiths.com">w_smith@compusmiths.com</a>> wrote:<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Where does it go after it enters the house? <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>73, Willie N1JBJ<o:p></o:p></p></div><div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>On Jul 3, 2022, at 1:03 AM, Jason M. Sanroma - K1NAD <<a href="mailto:K1NAD@sanroma.net">K1NAD@sanroma.net</a>> wrote:<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:13.5pt;font-family:"Arial",sans-serif'>Hello,<br><br>I have a Cobra Ultralite Senior. It is approximately 105 feet up in my pine trees. When the ladder line comes down, it goes through a porcelain insulator and then through a slit of wood in the eave of the house. My grandfather believes the VSWR is affected by its contact with the wood.<br><br>I was wondering if I should add a balun and run coax into the house instead of the feedline? Does anyone have recommendations for the Cobralite antenna balun?<br><br>I have attached a few pictures to explain what I am writing about.</span><span style='font-family:"Arial",sans-serif'><o:p></o:p></span></p></div></div></div></blockquote></div></div></div></div></blockquote><p class=MsoNormal><img border=0 width=3024 height=4032 style='width:31.5in;height:42.0in' id=D73257AE-E16B-426F-9295-E145863DC85B src="cid:image001.jpg@01D88EFD.8331F8F0"><img border=0 width=3024 height=4032 style='width:31.5in;height:42.0in' id=ECF35E76-950C-4D0F-8F92-C0718E2B3E56 src="cid:image002.jpg@01D88EFD.8331F8F0"><img border=0 width=5152 height=3864 style='width:53.6666in;height:40.25in' id="_x0034_4D2EF4F-A81A-4C98-AF0E-A825F6B0B605" src="cid:image003.jpg@01D88EFD.8331F8F0"><img border=0 width=5152 height=3864 style='width:53.6666in;height:40.25in' id="_x0031_771D5DF-9B23-41D5-A334-E9A59FA45FF7" src="cid:image004.jpg@01D88EFD.8331F8F0"><img border=0 width=3024 height=4032 style='width:31.5in;height:42.0in' id="_x0039_6156EA4-E138-49B9-9D64-85E12CC54568" src="cid:image005.jpg@01D88EFD.8331F8F0"><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Arial",sans-serif'>Thanks.<br><br>73,<br>Jason<br>K1NAD</span><span style='font-family:"Arial",sans-serif'><o:p></o:p></span></p></div></div></div></blockquote><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>