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Thanks for the great suggestion, Mr. Goldberg :-)<br><br>JIM WB6NIL<br><br>> Date: Thu, 2 Jun 2011 14:32:51 -0700<br>> Subject: Re: [App_rpt-users] Pingponging of a simplex node<br>> From: phil.n6tct@gmail.com<br>> To: bdboyle@bdboyle.com<br>> CC: telesistant@hotmail.com; app_rpt-users@ohnosec.org<br>> <br>> Another trick I've done in the past is to glue a phototransistor to<br>> the carrier detect LED on an HT. You don't have to crack open the HT<br>> and it works pretty well. (A downside is that on some HTs the carrier<br>> detect LED will turn on even if the correct CTCSS tone isn't present.<br>> alas.)<br>> <br>> Phil<br>> <br>> On Wed, Jun 1, 2011 at 5:31 PM, Bryan D. Boyle <bdboyle@bdboyle.com> wrote:<br>> > On 6/1/2011 8:15 PM, Jim Duuuude wrote:<br>> >><br>> >> If you REALLY HAVE to use an HT, use a Motorola, HT-600 or newer.<br>> >> They have a bridged audio out (for the speaker) coming out of the speaker/mic<br>> >> connector/cable and it only has DC bias on it when the radio has something<br>> >> to listen to. Therefore the presence of DC on the speaker lead can be used<br>> >> as a COR/CTCSS indication.<br>> >> [....]<br> </body>
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