Most of the CAT controllers that I have delt with have no provision for 
deemphasizing the audio in the controller. You can not feed 
discriminator audio directly into them without using a de-emphasis 
circuit in the audio path. One way is to take the discriminator audio 
through a 15K series resistor with a .22 mFd cap to ground on the 
output side of the resistor and feed that into the CAT receiver audio 
terminal. That should give you flat audio for the TT decoder to see and 
good sounding audio on the repeater output.

73 - Jim W5ZIT

-----Original Message-----
From: [EMAIL PROTECTED]
To: [email protected]
Sent: Sun, 22 Apr 2007 7:34 PM
Subject: Re: [Repeater-Builder] CAT-1000 Controller - Audio Response 
Change

On a CAT? I'm not sure that's possible.
You may end up changing the entire audio path. ;->

Joe M.

Tony L. wrote:
>
> Does anyone know how would I go about changing the audio response on a
> CAT-1000 controller? I'm seeking to make the audio "flat."
>
> Thanks.
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