diff --git a/groundstation/direwolf/direwolf-pacsat.conf b/groundstation/direwolf/direwolf-pacsat.conf
index fd4983eb..e526e272 100644
--- a/groundstation/direwolf/direwolf-pacsat.conf
+++ b/groundstation/direwolf/direwolf-pacsat.conf
@@ -2,3 +2,4 @@ MYCALL AMSAT
 ADEVICE plughw:CARD=Loopback,DEV=1 plughw:CARD=Headphones,DEV=0
 PTT GPIO 20  
 KISSPORT 8100
+FULLDUP OFF