[aprssig] New tracker/radio cables and OpenTracker+ bundle

[Scott Miller]

For most handhelds (except Kenwoods) PTT is triggered by pulling the mic 
audio line to ground through a resistor.  The HT detects the current and 
starts transmitting.  The Kenwoods (and most Chinese imports) have a 
separate PTT line.

Scott
N1VG

Joshua Shriver wrote:
> Perhaps a silly question, but if you hook this up to an HT, how does
> the HT know when to Tx?
> 
> I've used USB devices before to hook up a computer to a radio, but not
> sure how the radio is supposed to know when to Tx just by supplying an
> audio feed.
> 
> Look forward to getting this :)
> -Josh
> kd8fmz
> 
> On Wed, May 19, 2010 at 4:51 PM, Scott Miller <scott at opentrac.org> wrote:
>> We've finally got some factory-made radio and power cables in stock to
>> connect the OpenTracker+ or Tracker2 (or TT3/TT4, for that matter) to most
>> popular handheld radios.  We're also introducing a bundle that includes the
>> OpenTracker+, radio cable, and GPS receiver for $99:
>>
>> https://www.argentdata.com/catalog/product_info.php?products_id=143
>>
>> The cables are available separately here:
>>
>> https://www.argentdata.com/catalog/index.php?cPath=21_32
>>
>> More cable types to come.
>>
>> Scott
>> N1VG
>>
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> 
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