[arm-allstar] Tx A Level Setting

[Doug Crompton]

Chris,

 This is not terribly critical on a local node. If you were driving a
repeater or wide area node you would want it to be a little more precise.
The wider the deviation the louder the audio signal up to a point where it
goes out of the RX bandwidth and becomes distorted. I generally tell people
who do not have the equipment to adjust it to listen to a local repeater on
their radio and keeping the volume level constant tune to their node
output. The audio level should be about the same. Adjust if necessary. Also
keep in mind that the audio level of the signal you are listening to may
not be adjusted correctly at their end so you need to average this. You can
also use the ID or time outputs to do this adjustment - *80 or *81.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*



On Mon, Dec 11, 2017 at 10:32 AM, "Chris Souleles via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> What is the best way to determine correct setting for Tx A Level?  Now
> that I have added a voltage divider on the audio line between the FT7900
> and the DMK URi it has put it within the SW adjustment range, but I don't
> know how to determine the best setting.
> The Rx side is working well with Rx Level at 500, pre-emphasis on, Rx
> boost on and voice peaks just at 5Khz.
> The node is FT7900, DMK URi, RPI3.
> Thanks,  Chris - W6CS - 73
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