<div dir="ltr"><div>1 km? That should make it possible to see the beams of laser links.</div><div><br></div><div>Edwin<br></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 10 Dec 2019 at 13:17, Nathan Brookfield <<a href="mailto:Nathan.Brookfield@simtronic.com.au">Nathan.Brookfield@simtronic.com.au</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div class="gmail-m_9161507381388644633WordSection1">
<p class="MsoNormal">At the moment in Sydney, visibility is less than a km in some parts, it’s ridiculous!<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><span style="font-size:10pt;color:rgb(31,73,125)">Kindest Regards,</span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(33,33,33)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><span style="font-size:10pt;color:rgb(54,95,145)">Nathan Brookfield (VK2NAB)</span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(33,33,33)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><span style="font-size:10pt;color:rgb(54,95,145)"> </span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(33,33,33)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><span style="font-size:10pt;color:rgb(54,95,145)">Chief Executive Officer</span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(33,33,33)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><span style="font-size:10pt;color:rgb(54,95,145)">Simtronic Technologies Pty Ltd<u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><span style="font-size:10pt;color:rgb(54,95,145)"> </span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(33,33,33)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><b><span style="font-size:10pt;color:rgb(54,95,145)">Local:</span></b><span style="font-size:10pt;color:rgb(54,95,145)"> (02) 4749 4949 <b>|</b> <b>Fax:</b> (02) 4749 4950 <b>|</b> <b>Direct:</b> (02) 4749 4951</span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(33,33,33)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><b><span style="font-size:10pt;color:rgb(54,95,145)">Web</span></b><span style="font-size:10pt;color:rgb(54,95,145)">: <a href="http://www.simtronic.com.au/" target="_blank"><span style="color:rgb(54,95,145)">http://www.simtronic.com.au</span></a> <b>|</b> <b>E-mail</b>: <a href="mailto:nathan.brookfield@simtronic.com.au" target="_blank"><span style="color:rgb(54,95,145)">nathan.brookfield@simtronic.com.au</span></a><u></u><u></u></span></p>
<p class="MsoNormal" style="background:white none repeat scroll 0% 0%"><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(33,33,33)"><u></u> <u></u></span></p>
<p class="MsoNormal"><img style="width: 2.8396in; height: 0.6698in;" id="gmail-m_9161507381388644633Picture_x0020_2" src="cid:16eee14cc364cff311" width="273" height="64" border="0"><u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><b>From:</b> AusNOG <<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>> <b>On Behalf Of
</b>Steven Waite<br>
<b>Sent:</b> Tuesday, December 10, 2019 12:49 PM<br>
<b>To:</b> John England <<a href="mailto:john@bitwave.com.au" target="_blank">john@bitwave.com.au</a>>; Narelle Clark <<a href="mailto:narellec@gmail.com" target="_blank">narellec@gmail.com</a>>; <a href="mailto:ausnog@ausnog.net" target="_blank">ausnog@ausnog.net</a> <<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a>><br>
<b>Subject:</b> Re: [AusNOG] Smoke and radio performance<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span lang="EN-AU">We are seeing a similar thing. We have taken that into account within our fade margin. Only seeing 2-3dbm difference on the one or two 5ghz links we have. We have notice more of a hit on the 18ghz links but it only seems
to be at night. I think its more related with humidity and temperature inversions added with smoke worse then last year. Noise floor has not changed.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
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<div style="border-color:rgb(225,225,225) currentcolor currentcolor;border-style:solid none none;border-width:1pt medium medium;padding:3pt 0in 0in">
<p class="MsoNormal"><b>From:</b> AusNOG <<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>>
<b>On Behalf Of </b>John England<br>
<b>Sent:</b> Tuesday, 10 December 2019 10:27 AM<br>
<b>To:</b> Narelle Clark <<a href="mailto:narellec@gmail.com" target="_blank">narellec@gmail.com</a>>;
<a href="mailto:ausnog@ausnog.net" target="_blank">ausnog@ausnog.net</a> <<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a>><br>
<b>Subject:</b> Re: [AusNOG] Smoke and radio performance<u></u><u></u></p>
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</div>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-AU">Nothing too substantial during the day on any of our 5GHz, 24GHz or 80GHz links. Plenty of early AM thermal ducting events that seem worse than usual on 5GHz. Not sure how bad the smoke is there, but our visibility was
down to ~4km at the worst.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)" lang="EN-AU">Cheers.</span><span lang="EN-AU"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)" lang="EN-AU"> </span><span lang="EN-AU"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)" lang="EN-AU">John England</span><span lang="EN-AU"><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
<p class="MsoNormal"><b>From:</b> AusNOG <<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>>
<b>On Behalf Of </b>Narelle Clark<br>
<b>Sent:</b> Tuesday, 10 December 2019 11:14 AM<br>
<b>To:</b> <a href="mailto:ausnog@ausnog.net" target="_blank">ausnog@ausnog.net</a> <<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a>><br>
<b>Subject:</b> [AusNOG] Smoke and radio performance<u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU">Folks<u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU">Does anyone have any real world measurement data on the performance impact from the bushfire smoke on point to point radio throughput?<u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU">We're seeing a hit on a 5GHz system over the last week or so which seems awfully coincidental...<u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU">Narelle <u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span lang="EN-AU"><u></u> <u></u></span></p>
</div>
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