<html><head></head><body>I vote for centerline of transmitter above head high and below tent roof.<br><br>Unless the tent roof is metal foil the attenuation is slight.<br><br>Be sure to set SID to something like 'gxvju3-7-nsatest3' and lock access to only allowed devices. <br><br><div class="gmail_quote">On July 2, 2021 12:45:36 PM EDT, Alex Carver via Ale <ale@ale.org> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">Yeah, plenty of documentation about the Fresnel Zone, interference<br>caused by intrusions into the Fresnel Zone, and calculators for finding<br>various performance metrics all over the innertubes. Every telecom<br>products or service company.<br><br>Here's a fun online calculator from Ubiquiti that uses Google Maps and<br>graphically calculates the Fresnel Zone based on local terrain and the<br>particular device(s) you're using. Other than registering, usage is<br>free. There are better ones online that also collect all of the local<br>terrain and topology from buildings, trees, etc. but those are for a<br>fee. There's a few others that are basic online calculators that will<br>produce a KML file to import into Google Earth for visualization but the<br>Ubiquiti one has live feedback on the map as you point at locations on<br>the Fresnel Zone diagram at the bottom. For probably the next best one<br>this calculator generates the KML file.<br><a href="http://www.radiofresnel.com/">http://www.radiofresnel.com/</a><br><br><br>I own no stock or other financial interests in Ubiquiti, they just<br>happen to have cleaner interfaces and tools as you would expect from<br>former Apple employees.<br><br><br>On 2021-07-02 07:26, Neal Rhodes via Ale wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;">For our general edification, here is TP-Link's surprisingly informative<br>explanation. I've never used their equipment, but I am coming to like<br>their documentation.<br><br> "If there are some obstacles during the way, you'd better install<br>the two CPEs higher than them.<br> <a href="https://www.tp-link.com/us/support/faq/907/">https://www.tp-link.com/us/support/faq/907/</a><br> If it's impossible to bypass the trees and tent, the wireless<br>signal maybe unstable and weak at the client side."<br><br>On 2021-07-02 08:14, Phil Turmel via Ale wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"> +1<br><br> Complaining about reality is and always will be popular. But don't<br> let it turn into *denying* reality.<br><br> On 7/2/21 12:54 AM, Alex Carver via Ale wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #8ae234; padding-left: 1ex;"> Yes, that's pretty much what the Nanostations do.<br><br> No matter who you chose to provide the equipment let me just offer you<br> this one bit of critical info:<br><br> *Stop trying to cheat physics.*<br><br> Put your APs up on poles. No "IF we mount them", just do it. However<br> you have to do it even if you just strap poles to ladders, on tripods on<br> the roof, whatever. If you do this from the beginning and get them up<br> in the clear you will have relatively smooth operation. If you try to<br> cheat and have obstacles in the way of the beam, you will have headaches<br> and maybe pitchforks.<br><br> If you're being asked to do this then declare that pole mounts shall be<br> used and end the discussion. If they don't like it, walk out and let<br> them figure it out for themselves.<br></blockquote><hr>Ale mailing list<br>Ale@ale.org<br><a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br>See JOBS, ANNOUNCE and SCHOOLS lists at<br><a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br></blockquote><hr>Ale mailing list<br>Ale@ale.org<br><a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br>See JOBS, ANNOUNCE and SCHOOLS lists at<br><a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br></blockquote><hr>Ale mailing list<br>Ale@ale.org<br><a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br>See JOBS, ANNOUNCE and SCHOOLS lists at<br><a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br></pre></blockquote></div><br>-- <br>Computers amplify human error<br>Super computers are really cool</body></html>