Changes

<h2>The History of app_rpt</h2>

<h2>The History of App_Rpt</h2>

'''By: Jim Dixon WB6NIL'''<br/>

'''By Jim Dixon WB6NIL'''<br/>

<p>Once upon a time, there was <a href="http://www.asterisk.org">Asterisk PBX</a>. I was heavily involved in its initial practical implementation (<font size="-1">if interested, see link below <i>(The History of the Zapata Telephony Project as it relates to the Asterisk PBX</i></font>).</p>

<p>Once upon a time, there was [http://www.asterisk.org Asterisk PBX]. I was heavily involved in its initial practical implementation (<font size="-1">if interested, see link below <i>(The History of the Zapata Telephony Project as it relates to the Asterisk PBX</i></font>).</p>

<p>From its very onset, I saw that <a href="http://www.asterisk.org">Asterisk</a> was not only a good telephony switch, but also makes a good application implementation platform for virtually any telecommunication application that requires use of many of the things that Asterisk provides.</p>

<p>From its very onset, I saw that Asterisk was not only a good telephony switch, but also makes a good application implementation platform for virtually any telecommunication application that requires use of many of the things that Asterisk provides.</p>

<p><a href="http://app-rpt.qrvc.com/">App_Rpt</a> was started, not only to demonsrtate this feature of <a href="http://www.asterisk.org">Asterisk</a>, but to essentially provide an outlet of nearly 30 years of experience and frustration with repeater and remote base systems, in the form of designing a system essentially "the way I think a system should be."</p>

<p>App_Rpt was started, not only to demonsrtate this feature of Asterisk, but to essentially provide an outlet of nearly 30 years of experience and frustration with repeater and remote base systems, in the form of designing a system essentially "the way I think a system should be."</p>

<p>I learned from and was inspired by some of the best ideas and implementations and also from some of the worst, and tried to create a workable and desirable system that met as many needs as possible.</p>

<p>I learned from and was inspired by some of the best ideas and implementations and also from some of the worst, and tried to create a workable and desirable system that met as many needs as possible.</p>

<p>My first big hurdle was to design a radio interface that cound interconnect with a PC internally and the typical interface signals of a two-way radio. In the interest of keeping the technology simple and inexpensive, I designed a board (the ARIB board) which interfaced 2 analog FXS ports (either on a multiport analog card, like the <a href="http://www.digium.com">Digium</a> <a href="137">TDM400P</a>, or a channel bank connected to the PC through a T1 card, that is already part of an existing phone switch) to the Radio signals (and provide buffering, level control, etc).</p>

<p>My first big hurdle was to design a radio interface that cound interconnect with a PC internally and the typical interface signals of a two-way radio. In the interest of keeping the technology simple and inexpensive, I designed a board (the ARIB board) which interfaced 2 analog FXS ports (either on a multiport analog card, like the [http://www.digium.com Digium] <a href="137">TDM400P</a>, or a channel bank connected to the PC through a T1 card, that is already part of an existing phone switch) to the Radio signals (and provide buffering, level control, etc).</p>

<p><img src="/drupal/sites/default/files/pictures/analog-small.jpg" /><br />

<p><img src="/drupal/sites/default/files/pictures/analog-small.jpg" /><br />

Rev. C. Analog Radio Interface Board</p>

Rev. C. Analog Radio Interface Board</p>