<html><head><style type="text/css">body {word-wrap: break-word; background-color:#ffffff;}</style></head><body><div style="font-family: sans-serif; font-size: 16px">What is it written in?<br><br><font face="sans-serif"><span style="font-size: 14px"><i><font color="#333333">Sent via DROID on Verizon Wireless</font></i></span></font></div><br><br>-----Original message-----<br><blockquote style="; border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><div style="font-family: sans-serif; font-size: 14px"><b>From: </b>John Gorkos <jgorkos@gmail.com><b><br>To: </b>aprssig@tapr.org<b><br>Sent: </b>Fri, Jan 7, 2011 22:35:14 GMT+00:00<b><br>Subject: </b>[aprssig] Sending objects to RF via APRS-IS<br><br></div>Hello-<br> I'm working on implementing WB4APR's vision of AVRS, as described here:<br><a href="http://www.aprs.org/avrs.html">http://www.aprs.org/avrs.html</a><br><br>So far, I have had a good deal of success and have about 2500 lines of code <br>written that monitor the APRS-IS stream, track node status for both echolink <br>and IRLP, and maintain real-time position information for active APRS <br>stations. I also have working CMD/ACK code for commands sent to the AVRS <br>daemon via the APRS-IS stream.<br>One of the requirements spelled out in the avrs.html "spec" is that IRLP and <br>Echolink nodes will show up as Objects on the users' radio. Here is a sample <br>use case:<br>John, AB0OO is driving in an unfamiliar city and wishes to make an Echolink <br>connection to his home repeater. He sends a "?" query to "AVRS" via APRS, and <br>the AVRS server causes the local I-Gate to send two APRS objects (actually, <br>items) with the position and QSY information for the two closest EchoLink <br>nodes. He then selects one of those objects, hits the Tune button on his <br>D710, and his radio QSYs to the local echolink frequency with correct offset <br>and tone. He is then able to connect to his home repeater over echolink.<br><br>My question is, how do I properly structure an Object and send it via APRS-IS <br>such that a Tx-enabled I-Gate will broadcast that object on the air? What are <br>the logical steps an IGate will go through to figure out if an object it hears <br>on APRS-IS should generate an RF-transmit?<br><br>Incidentally, the AVRS server is periodically on-line as I work through it. <br>If you feel like pinging it, send a "?" to destination "AVRS". Right now, it <br>only returns EchoLink nodes, but IRLP should be added in a day or so (kudos to <br>both Jonathon and David for being so accomodating with my requests).<br><br>John Gorkos<br>AB0OO<br><br>_______________________________________________<br>aprssig mailing list<br>aprssig@tapr.org<br><a href="https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig">https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig</a><br><br></blockquote></body></html>