[arm-allstar] Volume adjustments on Motorola GR1225

LaRoy McCann lmccann at dtisp.com
Thu Sep 15 16:40:09 EST 2016


I have a GR1225 repeater that I acquired.  It was a functioning 
standalone repeater.
I now have it connected to a Pi and working.

The audio from the radio sounds great but the issue is with the amount 
of volume I am getting from the reciever.
I still peak over 5kc in simpleusb-tune-menu on loud voice peaks, and 
that is with a Bofeng ht.

I have rxboost set to 0 in simpleusb.conf.  I am down to 10 on the 
receiver adjustment of simpleusb-tune-menu.
All this and the audio is still a little hot.

This is the first gr1225 I have played with.  I am not sure about the 
settings in the radio.
The Rx Audio Output is set to flat.
Operation Mode is set to Repeater w/Ext Controller.
Repeater Audio Mode is set to EIA.

There is a setting on the service menu, some type of gain setting (don't 
remember exactly what it was called) that went from 0-31. This was set to 4.

Is there any other setting I am missing that would turn down the volume?
Is there any pot adjustment in the radio?

Do I need to add a resistor or pot in the audio line to adjust the level?


LaRoy  McCann - K5TW



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