All, I am a new Allstarlink user and I am experimenting with a simplex node at the moment. Hardware: PC -> URIx -> GM300 I quickly ran through the usb audio tune menu the system will transmit while in the test menu. However, when I try to get the system to tell me the time or otherwise transmit under normal conditions, I get no output and the transmitter is not keyed. I have included this log snippet below. It demonstrates the reception and decoding of the DTMF digits and it appears to think it is transmitting a response, but nothing is heard and the transmitter is not keyed. Any suggestions? Thanks, Robert N5QM [Jun 9 10:24:26] NOTICE[2757]: chan_usbradio.c:3015 usbradio_read: Got DTMF char * duration 169 ms [Jun 9 10:24:27] NOTICE[2757]: chan_usbradio.c:3015 usbradio_read: Got DTMF char 8 duration 127 ms [Jun 9 10:24:27] NOTICE[2757]: chan_usbradio.c:3015 usbradio_read: Got DTMF char 1 duration 191 ms -- <Zap/pseudo-2190193> Playing 'rpt/goodmorning' (language 'en') -- <Zap/pseudo-2190193> Playing 'rpt/thetimeis' (language 'en') -- <Zap/pseudo-2190193> Playing 'digits/10' (language 'en') -- <Zap/pseudo-2190193> Playing 'digits/20' (language 'en') -- <Zap/pseudo-2190193> Playing 'digits/4' (language 'en') -- <Zap/pseudo-2190193> Playing 'digits/a-m' (language 'en') -- Hungup 'Zap/pseudo-2190193'