<div dir="ltr"><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">Good afternoon;</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">I'm not sure what advantage going to 40 feet would make (other than taking more lightning strikes!), but have you considered using Rohn 45G tower rather than the 25G that is currently on the roof? </div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">Using the 45G gives significantly larger cross section to the tower. It may be with this larger cross-section tower, the same anchor points can be used as before to stiffen it even more. </div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">There is also the Rohn RSL40A14 which is self-supporting, 40' high, and supports 80 square feet of antenna, which is probably more than AUARC was considering. But, if that is what the Club wants, there are technical options. </div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">For what it is worth, my opinion for quite a while has been to get the antennas off the middle of campus and somewhere out where there is significantly less electrical noise. That gets around a number of electrical, mechanical, administrative and political issues.</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">Then just have a radio or even radios that can be operated over the AU internet by authorized individuals. That's being done many places now, so the technology isn't really an issue. Multiple radio users can even use the same multiband antennas simultaneously if desired. That way, Club users need only to have a laptop or smartphone to have access to the Club station from their apartment or (horror!) dorm room. </div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">73</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">John...</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large">WB4LNM</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 28, 2017 at 2:16 PM, Remington Harrison <span dir="ltr"><<a href="mailto:rch0012@tigermail.auburn.edu" target="_blank">rch0012@tigermail.auburn.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>Hi everyone,</p>
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<p>We won't have a meeting tonight; I just have a few updates on the tower for you all. </p>
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<p>Increasing the tower height to 40' is currently unfeasible due to us being unable to have adequate guying for it. Technically, the tower can be self-supporting up to 40' but that doesn't take into account the wind load of the antenna. Our Mosley beam derates
our maximum height to about 20' (the current height anyway). We have investigated making new guy points on the roof for the tower but so far we have been unsuccessful in acquiring permission since the roof is brand new (making new points in the roof would
void the warranty).</p>
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<p>I will let everyone know if the situation changes, but for now we will keep the antenna at 20'.</p>
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<p>Thanks, and have a good weekend!</p>
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<div class="m_3451916960682333015PlainText">-R. Chase Harrison KO4LA<br>
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