Per the manual the 538 Jupiter uses a floating audio output circuit for the speaker. Therefore, one can not ground one side of the speaker line.


73
Bob, K4TAX

On 10/21/2015 10:00 AM, Carl Jón Denbow wrote:
Thanks, Frank.  That's interesting because the shield is usually grounded.  I 
guess this means I'm muting the Jupiter speaker when I connect the K3s because 
I'm  grounding the floating Jupiter speaker circuit to the K3s ground.  73 de 
Carl, N8VZ

Sent from my iPhone

>On Oct 21, 2015, at 6:29 AM,"kg9hfr...@gmail.com"  <kg9hfr...@gmail.com>  
wrote:
>
>
>Carl, see Jupiter manual, text on I-1
>Ungrounded speaker, speakers terminals balanced load.
>Frank, KG9H
>
>

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