[App_rpt-users] audio level

[Robert A. Poff]

Yes, usbradio. 

On August 29, 2014 10:49:11 PM EDT, KJ6KO <kj6ko at innercite.com> wrote:
>
>  ----- Original Message ----- 
>  From: Robert A. Poff 
>  To: app_rpt-users at ohnosec.org 
>  Sent: Friday, August 29, 2014 5:56 PM
>  Subject: Re: [App_rpt-users] audio level
>
>
>  I wouldn't use the mic input on the M2 backplane.
>
>Using a URI, I run it through the op amp in the URI, and then directly
>to the exciter audio input.
>
>On the direct FM exciter (the so called PLL exciter) I've measured the
>CG input is dead flat from 50 cycles or so to at least 8KC. No
>pre-emphasis at all. This is where they injected the EDACS voice data.
>A perfect place to inject TX audio.  Just remember to set the URI to
>TXPRELIM=YES.  I don't think SIMPLEUSB will do that will it?  Don't you
>have to use USBRADIO to do that?
>
>  As to levels......
>It's generally been my habit, from my two way radio service days, to
>set the exciter to hard limit everything at 5 KC. Then set the transfer
>audio so that a signal on the input modulated, to 3 KC modulates the
>transmitter to 4 KC. Takes advantage of the limiter to make up a bit of
>mod density. With Allstar do this with the txvoice set command.
>
>
>  -- 
>  Sent from my Android phone with K-9 Mail. 
>  Please excuse my brevity and typing errors.
>
>
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-- 
Sent from my Android phone with K-9 Mail. 
Please excuse my brevity and typing errors.
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