[chirp_users] Chirp and the volume control

[Ryan Tourge]

Voodoo.

On Wed, Aug 24, 2016 at 12:40 PM, Ken <ken at wa0sbu.com> wrote:

> I put mine on a scope and watched the data stream.  The volume control had
> no effect on the data.  If it works for you and you believe it.  I can see
> why Jim put it in Chirp.
>
> 73  Ken
>
>
>
> On 08/23/2016 07:59 PM, Donnie Tate wrote:
>
> Mine would not program without the volume control turned up.
>
> On Tue, Aug 23, 2016 at 6:14 AM, Jim Unroe <rock.unroe at gmail.com> wrote:
>
>> On Mon, Aug 22, 2016 at 11:30 PM, Frederick R. McDougall
>> <frmcdo at gmail.com> wrote:
>> > On my uv5rc unit the volume control does control the volume of the
>> > speaker/mic.
>>
>> As it should. The volume control controls the level of audio to the
>> internal speaker and to a external speaker properly connect to the
>> audio out lines.
>>
>> >  Thus it would also control the amplitude of the radio to
>> > computer signal while reading the radio.
>>
>> Incorrect. As I mentioned earlier, the radio communicates with the
>> computer via a TTL level serial communication (+3.3 volts/0 volts).
>> There is no speaker out or mic in audio involved. There aren't even
>> any wires connected to the audio out or mic in because they are not
>> needed or used for serial communications.
>>
>> It is not AFSK (audio frequency shift keying) like over-the-air
>> digital communications. That would be an added complexity that isn't
>> required.
>>
>> Jim KC9HI
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>>
>
>
>
> --
> Donnie L. Tate
> 185 Memory Lane Drive
> Gate City  VA  24251
> 276-386-7677
>
>
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>
> This message was sent to Ken at ken at wa0sbu.com
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>
>
>
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