[App_rpt-users] duplex=2, hear myself, repeater

mike at midnighteng.com mike at midnighteng.com
Tue Feb 23 19:21:35 EST 2016

I'm sorry O.M. your message is not clear but I'll try from what I see.

First, there is a duplex=  setting in both rpt.conf and usbradio.conf
I was not sure you have been changing the correct one.
It's happened before....

Assuming a full duplex simple repeater,

duplex=1 in usbradio.conf... see http://ohnosec.org/drupal/node/193

duplex=2 in rpt.conf... see http://ohnosec.org/drupal/node/84

If there is some other issue, it could be in other timers/settings if you are using
the correct duplex for your need. But sometimes a simple remove and replace the usb
sound dongle may clean it out if you have been adjusting settings very much.
If not resolved, try a hard boot and test before adjusting settings again.


> Hi all, in duplex=2 i can hear myself for just a sec when i unkey. Is
> the correct was to solve this is to change to duplex=3 and wire the rx
> radio audio out/cod to the tx radio audio in/ptt?
>   hardware = kenwood tx radio, kenwood rx radio, asterisk on pi2, uri,
> duplexer.
> wiring PDF here
> w6fbw.digitalattack.org/wiring.pdf
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