Thanks for the great suggestion, Mr. Goldberg :-)

JIM WB6NIL

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