[aprssig] Problems with hum on TX audio.

[w0ep]

Could it possibly be a PL tone?


On Mon, 2006-02-27 at 13:36 -0600, Patrick Green wrote:
> Yes, that's now on the list to try.  Also going to put the radio and
> TNC both on battery power since the hum is 60 hertz.
> 
> 73 de Pat --- KA9SCF.
> 
> On 2/27/06, w0ep <w0ep at frii.com> wrote:
>         
>         
>         Is it possible to try the 2200 with the microphone, just to
>         key it up and see if you get the hum?  That might remove
>         the cable and/or TNC from the equation.
>         
>         
>         
>         
>         
>         
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