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[aprssig] FRS radios and PTT

Javier Henderson javier at kjsl.org
Mon Mar 14 17:43:03 UTC 2011


On Mar 14, 2011, at 1:39 PM, Stephen H. Smith wrote:

> On 3/14/2011 8:53 AM, Bob Bruninga wrote:
>> Just did a circuit to be able to key a VOX radio either with audio or
>> keyline without having DC connectivity.  Just a single transistor twin-T
>> oscillator set to 4.5 KHz.  Either VOICE can key the radio,
> 
> Huh?   What does this mean? What two voices?
> 
>> or I can
>> manually key it over a long wire without having to turn the VOX on/and/off
>> (from front panel buttons


Just one voice.

Bob said there are two ways to key the radio, either by voice (VOX) or by manually keying it over a wire (the part of the message you quoted after your question).

73,
-jav w6vms





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