<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Let's get away from 1200</div><div id="AppleMailSignature"><br><div>-----------------------------</div>Sent from my iPhone<div>Andrew Rich</div><div><a href="mailto:vk4tec@tech-software.net">vk4tec@tech-software.net</a></div><div><a href="http://www.tech-software.net">www.tech-software.net</a></div><div>0419 738 223</div></div><div><br>On 13 Jun 2016, at 04:15, Jason KG4WSV via aprssig <<a href="mailto:aprssig@tapr.org">aprssig@tapr.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jun 12, 2016 at 12:49 PM, Andrew Rich via aprssig <span dir="ltr"><<a href="mailto:aprssig@tapr.org" target="_blank">aprssig@tapr.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">19k2 is there – the modules are $40<u></u><u></u></span></p><p class="MsoNormal"></p></blockquote></div><br><br>Or an Xbee pro 900HP that can do 200k at 4 miles or 10k at 9 miles with a dipole. It'll do 40+ miles with a gain antenna. $40 plus antenna. Only 250mW but pretty effective.</div><div class="gmail_extra"><br></div><div class="gmail_extra">They also have mesh network models that could be good for building temporary networks for events (races, etc) where 144.390 coverage is inadequate, although I haven't looked at the mesh networking myself.</div><div class="gmail_extra"><br></div><div class="gmail_extra">I'm testing a tracker on the bench right now that speaks APRS over Xbee. I expect it to last 3 to 5 days beaconing every 3s on a single CR123A. The old version that just transmitted 2 NMEA sentences at 1Hz lasted > 24 hours.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Still have some things to figure out with the xbee addressing to work out multiple receivers, and to see how many trackers I can timeslot onto a single channel.</div><div class="gmail_extra"><br></div><div class="gmail_extra">The beagle bone black to digipeat this onto 2m so I can keep using my Kenwood ARPS rigs is nearly done, too.<br clear="all"><div><br></div><div class="gmail_signature" data-smartmail="gmail_signature">-Jason<br>kg4wsv</div>
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