[arm-allstar] Echo on end of transmission

[David McGough]

Hi Scott,

You're probably hearing the inherent delay in audio, from RX to TX, as it
passes through the AllStar software.

The typical symptom is when a person unkeys, they hear the last syllable
or so of what they said when they were transmitting.  This typically only
happens if you're running in duplex=2 mode.  There really isn't any way to
fix this audio delay.  If you've got a radio with FAST TX-to-RX turn
around time, you'll hear this "talk back."

One simple work-around is to enable PL-tone on the repeater transmitter
and also on each receiver the hams are listening on. By turning on PL
decode, that slows down the TX-to-RX transition and then the users 
typically won't here their "talk back," even though it still happens.


73, David KB4FXC




On Sat, 7 Aug 2021, "Scott Hostetler via ARM-allstar" wrote:

> I read somewhere where this issue was corrected.  I had had a couple of
> repeater users ask why they hear themselves at the end of their
> transmission.  I am using the node as the repeater controller as well.  Any
> remedy to this?  I have not personally heard it on my end.
> 
> Thanks
> K4MDI
> Scott
> _______________________________________________
> 
> ARM-allstar mailing list
> ARM-allstar at hamvoip.org
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> 
> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
>