<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1485343275671_22367"><span id="yui_3_16_0_ym19_1_1485343275671_22451">Has anybody actually succeeded in putting two KISS TNC's "back to back" to form an independently operating (no computer between them) two-way "bridge" to pass traffic bi-directionally?</span></div><div id="yui_3_16_0_ym19_1_1485343275671_22530"><span id="yui_3_16_0_ym19_1_1485343275671_22451"><br></span></div><div id="yui_3_16_0_ym19_1_1485343275671_22547"><span id="yui_3_16_0_ym19_1_1485343275671_22451">Lots of suggesting that this could work, but has it been done?</span></div><div id="yui_3_16_0_ym19_1_1485343275671_22549"><span id="yui_3_16_0_ym19_1_1485343275671_22451"><br></span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1485343275671_22566"><span id="yui_3_16_0_ym19_1_1485343275671_22451">Ev, W2EV</span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1485343275671_22568"><span id="yui_3_16_0_ym19_1_1485343275671_22451"><br></span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1485343275671_22604"><span id="yui_3_16_0_ym19_1_1485343275671_22451">PS...I hope to try this myself, but would appreciate learning from others if they have already done so.<br></span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1485343275671_22368"><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1485343275671_22372" style="display: block;"> <div style="font-family: Courier New, courier, monaco, monospace, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1485343275671_22371"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1485343275671_22370"> <div dir="ltr" id="yui_3_16_0_ym19_1_1485343275671_22369"> <font id="yui_3_16_0_ym19_1_1485343275671_22605" size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> John D. Hays <john@hays.org><br> <b><span style="font-weight: bold;">To:</span></b> Robert Bruninga <bruninga@usna.edu> <br><b><span style="font-weight: bold;">Cc:</span></b> TAPR APRS Mailing List <aprssig@tapr.org><br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, January 24, 2017 7:43 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [aprssig] 2 Port Digitpeater was: APRS UHF freq? (9600 baud)<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1485343275671_22511"><br><div id="yiv4816309223"><div dir="ltr" id="yui_3_16_0_ym19_1_1485343275671_22607"><div id="yui_3_16_0_ym19_1_1485343275671_22606">It is a pretty straightforward project with direwolf and the UDRC-II. 9600/1200 operation is easily supported and cross port digipeating is possible. I've even done experimental 9600 and 1200 baud through the same radio and port.</div><div id="yui_3_16_0_ym19_1_1485343275671_22608"><br></div><div><a rel="nofollow" target="_blank" href="https://nw-digital-radio.groups.io/g/udrc/wiki/UDRC%E2%84%A2-and-Direwolf-Packet-Modem">https://nw-digital-radio.groups.io/g/udrc/wiki/UDRC%E2%84%A2-and-Direwolf-Packet-Modem</a><br></div><div class="yiv4816309223gmail_extra"><br></div><div class="yiv4816309223gmail_extra">If you want a quasi-national APRS frequency, go below 440 to the 430-440 band.</div><div class="yiv4816309223gmail_extra"><br><div class="yiv4816309223gmail_quote">On Tue, Jan 24, 2017 at 2:09 PM, Robert Bruninga <span dir="ltr"><<a rel="nofollow" ymailto="mailto:bruninga@usna.edu" target="_blank" href="mailto:bruninga@usna.edu">bruninga@usna.edu</a>></span> wrote:<br><blockquote class="yiv4816309223gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;"><div lang="EN-US"><div class="yiv4816309223gmail-m_-6782542588059004514WordSection1"><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);">Re 9600 and UHF,</span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);"> </span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);">I have slowly begun to start using local UHF repeaters (and meeting newer voices) for just the reason you mention (VHF desense). We have DOZENS of UHF repeaters in our area (Maryland/DC)).</span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);"> </span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);">Just a note. 9600 baud APRS gains only about a factor of 2, not the expected factor of 8, because of the fixed overhead of TXD and other T/R delays. Combined with the significantly less range of UHF for the same class antennas, there is almost no incentive to operate APRS style bursts on UHF at 9600 baud. That is why it has never taken off. </span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);"> </span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);">But actually moving TRAFFIC through a fixed long linear 9600 baud conventional packet links is something we should have been doing since 1998 when every APRS radio by Kenwood put dual band 1200/9600 baud TNCs in the hands of almost every operator. But no one uses this powerful 9600 baud we have had for 19 years. </span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);"> </span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);">I want to build a 9600 baud East coast packet network.</span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);">See: <a rel="nofollow" target="_blank" href="http://aprs.org/ec9600net.html">http://aprs.org/ec9600net.html</a></span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);"> </span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);"> Bob, WB4APR</span></div><div class="yiv4816309223MsoNormal"><span style="font-size:11pt;font-family:calibri, sans-serif;color:rgb(31,73,125);"> </span></div></div></div></blockquote></div>-- <br><div class="yiv4816309223gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><br><hr><div style="float:left;padding-left:1em;color:blue;"><font><font>John D. Hays</font></font></div><div style="float:left;padding-left:1em;color:blue;"><font><span style="color:rgb(128,128,128);"><font>K7VE</font></span></font><br><span style="color:rgb(128,128,128);"><font></font></span></div><div style="float:left;padding-left:1em;color:blue;"><span style="color:rgb(128,128,128);"><br></span></div><div style="float:right;text-align:right;"><font><font>PO Box 1223, Edmonds, WA 98020-1223</font></font><br><div style="padding-top:0.5em;"><img src="http://k7ve.org/images/Facebook-26.png" style="font-size:12.8px;" data-id="bebb2270-f0a2-4673-7d0a-cebe7317bde1"> <img src="https://docs.google.com/uc?export=download&id=0B16WvG35kZ7SUFYwZldBMmJXeWs&revid=0B16WvG35kZ7STXlkYm1oMkpHYzVxOUlxVEtXc1dqMXZhdjZFPQ" style="font-size:12.8px;" data-id="caf6f981-3a4f-089f-7521-33219e717eb0"> <a rel="nofollow" target="_blank" href="http://k7ve.org/blog"><img src="http://k7ve.org/images/blog-icon-box-red-26.png" data-id="ecad2e75-5708-c6ef-bdd4-c4960d4a0240"></a> <a rel="nofollow" target="_blank" href="http://twitter.com/#!/john_hays"><img src="http://k7ve.org/images/Twitter-26.png" data-id="8bde0d16-0c6d-1a9e-789c-bf28d2ebe904"></a></div><div style="padding-top:0.5em;"><br></div></div></div></div></div></div></div></div></div></div>
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