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--></style></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">Wow, that was easy.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Subject:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> APRStt (Touchtone) on the air in Annapolis</span></p><p class="MsoNormal"> </p><div><div><div><div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">We just put the APRStt (touchtone) </span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">QIKCOM-2 satellite </span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">transponder on the air in Annapolis for locals to try out. But there's more!... WoW!<br> -----------Now the new idea! --------------</span><span style="color:#1f497d"></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">It only took a few hours, but it is now all coded, including the table for ALL repeater frequencies encoded to 2 digits.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">It works like this:</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Anyone can encode their callsign and 2 digit “repeater code” and store in a DTMF memory.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">At any time they can send that string from memory, and here is what happens at the APRStt CALL-engine:</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">User includes the 2 digit repeater ID “94” in his DTMF callsign string</span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">CALL Engine responds on the simplex DTMF channel with spoken “CALLSIGN Listening on 146.940”</span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">APRS packet goes out on APRS with a 1 mile ambiguity packet from the CALLSIGN that includes the QSY frequency such as:</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">WB4APR>APRS:!3859. N/07628. WA146.940MHz listening APRStt</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Done.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Anyone on APRS seeing that packet can QSY his Kenwood or APRS radio to the voice channel with the push of the TUNE or QSY button. Anyone monitoiring the area wide DTMF channel will hear where the person is operating and when.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">ALSO: As part of general APRStt, any of the DTMF-only users can send any of the other 99 standard APRS messages too from their DTMF keypad using the DTMF Message format… with only the 2 message digits… </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">See <a href="http://aprs.org/qikcom-2.html">http://aprs.org/qikcom-2.html</a></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Or <a href="http://aprs.org/aprstt.html">http://aprs.org/aprstt.html</a></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Its working and programmed. Now all I have to do is conncect it to the simplex DTMF radio on 146.58 for DTMF users and to another 144.39 APRS radio…Done.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bob, WB4APR</span></p></div></div></div></div></div></div></body></html>