Hi to everyone . My DMR Gateway software suite is installed and all the testing in the procedure are OK.. I am connecting to Brandmeister 3108 port 55001 TG 3027 . All response are OK . The Brandmeister site shows my DMRlink on the Last Heard window as a Smart PTT Bridge My DMRGAteway windows shows the connection to 127.0.0.1 port 31000 and to my AST USRP 34001 When I do PTT and test audio from Iaxrpt connected to my node . The RED and Green leds on th Thumbsb are flashing. LH list on the server is updated . My DMRGatewy windows shows “Connected ( PTT asserted)” and “Disconnected ( PTT off)” when released My ambe_audio windows shows `” INFO Transmit from gateway to TG3027:” then “INFO Transmit complete “ on PTT release My test MMDVM repeater opened on TG 3027 receives a PTT from network. BUT No audio ( only faint high frequency buzz ) No activity on Hoseline even if Last Heard is being updated..... Any hints as how to test the ThumbDV output ??? Have been experimenting with the outputAudioDevice in DMRGateway.ini without success..... Deffective ThumbDV ?????? . How can I make shure ???? Also I am hearing some audio out on AST node that is not coming from TG3027 ?????? My entry in ambe_audio.cfg is TGfilter = 3027,4327 Loaded the system twice from scratch and ..... Same..... Thanks for any advice Richard VE2DJE Provenance : Courrier pour Windows 10