[App_rpt-users] Mastr II and URI low TX audio

[KJ6KO]

That was the jumper I remember removing in the MII.  It removed DC from the 
mic and I believe increased the gain of the audio TX stage in the radio when 
you did it???
----- Original Message ----- 
From: "Bryan D. Boyle" <bdboyle at bdboyle.com>
To: <app_rpt-users at ohnosec.org>
Sent: Friday, August 16, 2013 6:53 AM
Subject: Re: [App_rpt-users] Mastr II and URI low TX audio


> On 8/16/2013 9:41 AM, Robert Poff wrote:
>
>> Yes, the microphone has an amplified cartridge. Hence MIC DC on the mic
>> audio line. But the URI has a 10uf blocker cap on it's inputs and
>> outputs if believe.
>
> Actually, has both AC coupled and non-coupled (ie no cap) audio circuits
>
> Pin 9 Mic In
>    10 Left Out
>
>    21 Mic In AC
>    22 Left Out AC
>
> It's pretty plain from reading the schematic.  BTW, you can use these
> URI to couple more than just transceivers and radio stuff to the
> asterisk software.  Think outside the bun.
>
>
> Bryan
> WB0YLE
>
>
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