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