I just set up a remote base with deemphasized audio, not discriminator. On usbradio.conf when I set up rxdemod=flat, the audio sounds very bassy coming from my remote base, so I changed it to rxdemod=speaker. I restarted asterisk, and now no audio came from the radio, just a dead carrier, even when I turned the rx level to 999 in usbradio.conf. 73 Skyler _____________________________________ Here is my usbradio.conf file: [general] [usb] hdwtype=0 rxboost=1 txboost=0 rxctcssrelax=1 txctcssdefault=250.3 ;rxctcssfreqs=100 ;txctcssfreqs=100 ;rxctcssoverride=1 carrierfrom=usb ctcssfrom=usb rxdemod=speaker !!!I get audio when this is set to flat, but nothing on speaker!!! txprelim=no txlimonly=no txtoctype=phase txmixa=composite txmixb=no invertptt=0 duplex=1 rxondelay=1 rxsquelchdelay=25 rxnoisefiltype=0 eeprom=0 ;gpio=out1 gpio1 = out1 ; in, out0 or out1 gpio2 = out1 gpio4 = in ; in, out0 or out1