<div dir="ltr"><div class="gmail_default" style="font-size:small">Here is a coverage plot from Radio Mobile Online to inform the discussion. If any of the parameters are incorrect, I am happy to rerun with modifications.</div><div class="gmail_default" style="font-size:small">I will let other render opinions based on this.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Parameters I used:</div><div class="gmail_default" style="font-size:small"><table width="1000" cellpadding="0" cellspacing="0" style="color:rgb(0,0,0);font-family:Times;font-size:medium;border-collapse:collapse"><tbody><tr style="border-bottom:2pt solid black"><th colspan="2">Radio Mobile Online Coverage report</th></tr><tr style="border-bottom:2pt solid black"><td>Description </td><td>Blyn Mt. HamWAN 5875 MHz***</td></tr><tr style="border-bottom:2pt solid black"><td>Frequency </td><td>5875 MHz</td></tr><tr style="border-bottom:1pt solid grey"><td>Base Name </td><td>Blyn Mt. HamWAN</td></tr><tr style="border-bottom:1pt solid grey"><td>Latitude </td><td>48.00667800 °</td></tr><tr style="border-bottom:1pt solid grey"><td>Longitude </td><td>-122.97266800 °</td></tr><tr style="border-bottom:1pt solid grey"><td>Latitude </td><td>48° 00' 24.04"N</td></tr><tr style="border-bottom:1pt solid grey"><td>Longitude </td><td>122° 58' 21.60"W</td></tr><tr style="border-bottom:1pt solid grey"><td>QRA</td><td>CN88MA</td></tr><tr style="border-bottom:1pt solid grey"><td>UTM (WGS84)</td><td>10U E502039 N5317043</td></tr><tr style="border-bottom:1pt solid grey"><td>Canada Map Index</td><td>92B2</td></tr><tr style="border-bottom:2pt solid black"><td>Elevation </td><td>599.4 m</td></tr><tr style="border-bottom:1pt solid grey"><td>Base Antenna Height </td><td>32 m</td></tr><tr style="border-bottom:1pt solid grey"><td>Base Antenna Gain </td><td>18.0 dBi</td></tr><tr style="border-bottom:1pt solid grey"><td>Base Antenna Type </td><td>omni</td></tr><tr style="border-bottom:1pt solid grey"><td>Base Antenna Azimuth </td><td>0 °</td></tr><tr style="border-bottom:2pt solid black"><td>Base Antenna Tilt </td><td>2 °</td></tr><tr style="border-bottom:1pt solid grey"><td>Mobile Antenna Height </td><td>6.0 m</td></tr><tr style="border-bottom:2pt solid black"><td>Mobile Antenna Gain </td><td>24.0 dBi</td></tr><tr style="border-bottom:1pt solid grey"><td>Tx Power </td><td>1.00000 W</td></tr><tr style="border-bottom:2pt solid black"><td>Tx Line Loss </td><td>3.0 dB</td></tr><tr style="border-bottom:1pt solid grey"><td>Rx Line Loss </td><td>0.5 dB</td></tr><tr style="border-bottom:2pt solid black"><td>Rx Threshold </td><td>0.400 μV (-115.0 dBm)</td></tr><tr style="border-bottom:1pt solid grey"><td>Required Reliability </td><td>70%</td></tr><tr style="border-bottom:2pt solid black"><td>Strong signal margin </td><td>15.0 dB</td></tr><tr style="border-bottom:1pt solid grey"><td>Weak signal field</td><td>13.6 dBμV/m</td></tr><tr style="border-bottom:2pt solid black"><td>Strong signal field</td><td>28.6 dBμV/m</td></tr><tr style="border-bottom:1pt solid grey"><td>Weak signal covered area</td><td>7977 km<sup>2</sup></td></tr><tr style="border-bottom:2pt solid black"><td>Strong signal covered area</td><td>7056 km<sup>2</sup></td></tr><tr style="border-bottom:1pt solid grey"><td>Weak signal population reached</td><td>1351906 pop</td></tr><tr style="border-bottom:2pt solid black"><td>Strong signal population reached</td><td>1065190 pop</td></tr><tr style="border-bottom:1pt solid grey"><td>Landcover used</td><td>Yes</td></tr><tr style="border-bottom:2pt solid black"><td>Two rays method used</td><td>Yes</td></tr><tr style="border-bottom:1pt solid grey"><td>User ID</td><td>kg2iq</td></tr><tr style="border-bottom:1pt solid grey"><td>Radio coverage ID</td><td>RMBDE4632D77F8_0</td></tr><tr style="border-bottom:2pt solid black"><td width="50%">Generated on</td><td width="50%">6/25/2020 3:38:01 PM</td></tr></tbody></table><table cellpadding="0" cellspacing="0" style="color:rgb(0,0,0);font-family:Times;font-size:medium"><tbody><tr><th id="gmail-wt"><img src="https://www.ve2dbe.com/rmonline/temp/RMBDE4632D77F8_RMBDE4632D77F8_0_report2.png" style="user-select: none;"></th></tr><tr><td><img id="gmail-z1" src="https://www.ve2dbe.com/rmonline/temp/RMBDE4632D77F8_RMBDE4632D77F8_0_report.png"></td></tr></tbody></table></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 25, 2020 at 12:48 PM Kenny Richards <<a href="mailto:richark@gmail.com">richark@gmail.com</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"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><span style="font-family:Arial,Helvetica,sans-serif">On Thu, Jun 25, 2020 at 11:52 AM John C. Miller <<a href="mailto:kx7jm@jmit.com" target="_blank">kx7jm@jmit.com</a>> wrote:</span><br></div></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u><div><div style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:10pt"><div>Just to clarify: Sector 3 is nominally pointed Southwest / 240 degrees, is that correct?<br></div></div></div></blockquote><div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Yes, which would mostly be pointed at the national park.</div></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:10pt"><div></div><div><br></div><div>I would counter with the following regarding sector 3 on Blyn:<br></div><div><br></div><div><div>1) The users that we *would* potentially have in this sector 3 region might well be the ones who have the fewest (or no) other connectivity options. They also might be the most isolated in certain types of disasters, which would only amplify the usefulness and public service dimension of providing this coverage.<br></div></div></div></div></blockquote><div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Except the area is densely forested, making the ability to establish a connection for a remote user even more unlikely. The DMR repeater being installed would be a much better option for someone trying to communicate out of the area.</div></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:10pt"><div><div></div><div><br></div><div>2) The incremental cost in terms of time and $$$ to add that third sector, versus just deploying 2 sectors, mitigates in favor of deploying Sector 3 now.<br></div></div></div></div></blockquote><div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">It isn't a cost factor, but an additional RF noise source being added to a pretty confined structure. (ie. reducing the effectiveness of the other radios) The plan is to install five radios and while there is a fair amount of vertical distance, it sounds like the top will be reserved for the PtP to clear other physical blockers located in the line of sight to Triangle/SnoDEM. I know this is why we install shields, but they are not perfect.</div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">I'm not flat out against this, just raising the question.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Thanks</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Kenny </div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:10pt"><div><br></div><div><div><br></div><div id="gmail-m_-819832355775156625gmail-m_-1721966836787350146Zm-_Id_-Sgn1">---- On Thu, 25 Jun 2020 09:16:22 -0700 <b>Kenny Richards <<a href="mailto:richark@gmail.com" target="_blank">richark@gmail.com</a>></b> wrote ----<br></div><div><br></div><blockquote style="border-left:1px solid rgb(204,204,204);padding-left:6px;margin:0px 0px 0px 5px"><div><div dir="ltr"><div dir="ltr"><div style="font-family:arial,helvetica,sans-serif;font-size:small"><span style="font-family:Arial,Helvetica,sans-serif">On Wed, Jun 24, 2020 at 1:01 PM Tom Hayward <<a href="mailto:tom@tomh.us" target="_blank">tom@tomh.us</a>> wrote:</span><br></div></div><div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><br></div><div><div dir="ltr">On Wed, Jun 24, 2020 at 11:47 AM Bart Kus <<a href="mailto:me@bartk.us" target="_blank">me@bartk.us</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>It covers Port Angeles.<br></div></blockquote><div><br></div><div>We should plan to fudge the azimuth slightly to optimize Port Angeles.<br></div></div></div></blockquote><div><br></div><div><div style="font-family:arial,helvetica,sans-serif;font-size:small">Could we fudge S1 and S2, then not need a S3?<br></div><div style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div style="font-family:arial,helvetica,sans-serif;font-size:small">Sorry to keep pushing this point, but that is a huge area of space which is not likely to have many users.<br></div></div><div style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div style="font-family:arial,helvetica,sans-serif;font-size:small">Thanks<br></div><div style="font-family:arial,helvetica,sans-serif;font-size:small">Kenny<br></div><div style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">_______________________________________________<br> PSDR mailing list<br> <a href="mailto:PSDR@hamwan.org" target="_blank">PSDR@hamwan.org</a><br> <a href="http://mail.hamwan.net/mailman/listinfo/psdr" target="_blank">http://mail.hamwan.net/mailman/listinfo/psdr</a><br></blockquote></div></div><div>_______________________________________________<br></div><div>PSDR mailing list<br></div><div><a href="mailto:PSDR@hamwan.org" target="_blank">PSDR@hamwan.org</a><br></div><div><a href="http://mail.hamwan.net/mailman/listinfo/psdr" target="_blank">http://mail.hamwan.net/mailman/listinfo/psdr</a><br></div></div></blockquote></div><div><br></div></div><br></div></blockquote></div></div>
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