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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Why not put the Igate on 144.39 where everyone is?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It will hear those that are close, and that is the point.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bob, WB4APR<br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> aprssig-bounces@tapr.org [mailto:aprssig-bounces@tapr.org] <b>On Behalf Of </b>Randy Love<br><b>Sent:</b> Monday, May 16, 2011 3:18 PM<br><b>To:</b> TAPR APRS Mailing List<br><b>Subject:</b> Re: [aprssig] Digipeater setup for Dayton<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Hi, Bob.<br><br>I'm helping with an indoor vendor this year and am considering setting up an igate at the booth on a 70cm freq. Do you think such an indoor 70cm igate would be useful? <br><br>73,<br>Randy<br>WF5X<o:p></o:p></p><div><p class=MsoNormal>On Mon, May 16, 2011 at 10:28 AM, Bob Bruninga <<a href="mailto:bruninga@usna.edu">bruninga@usna.edu</a>> wrote:<o:p></o:p></p><p class=MsoNormal>> [does] anyone set up a digipeater at Dayton,<br>> or do we rely on the local digi's?<br><br>Proper operation of an event like Dayton would suggest that putting up a<br>digipeater would be the worst thing to do. With over 300+ mobiles and<br>portables beaconing away all in simplex range of each other, a digipeater<br>would do nothing but drastically reduce the reliability of the channel by<br>half or more.<br><br>The proper way to handle a ham radio event with a massive influx of APRS<br>operations is to:<br><br>1) Have no digi at the focal point (Hamvention) (all signals are direct)<br><br>2) Have all digis going out 20 miles in all directions be ONE-HOP DIGIS<br>ONLY. That is, they only respond to WIDE1-1 or WIDE2-2 and nothing else.<br>They digipeat once and do callsign substitution so the packet goes no<br>farther.<br><br>3) Strategic IGates are placed right at Hamvention so they hear everything<br>in simplex range.<br><br>4) Additional IGates are configured so that every surrounding digi going out<br>20 miles has an IGate to hear the one-hop packets.<br><br>5) Doing all the above, then the hundreds of APRS mobiles and portables do<br>not have to change anything. They just drive into town with their normal<br>WIDE1-1,WIDE2-1 settings.<br><br>No matter where you are, you will hear all your surrounding stations, and<br>that is the best APRS can do under those conditions.<br><br>Bob, WB4APR<br><br><br><br>_______________________________________________<br>aprssig mailing list<br><a href="mailto:aprssig@tapr.org">aprssig@tapr.org</a><br><a href="https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig" target="_blank">https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>