Hello All, I'm running a simplex node, the radio itself handles any tone modulation. Its been said that the transmitted audio seems to be a bit too loud. The URI is interfaced to a Kenwood TM271- 2m radio. Wired direct from URI pins 22 (Left AC audio out) and 20 (GRD) to the MIC and GRD pins on the radio mic jack. I don't have any test/calibration equipment but I figured I could lower the Transmitted Audio setting using 'radio-tune-menu'. Problem is that I have the "Set Transmit Voice Level" setting all the way down to 15 (0-999) and the transmit audio still sounds loud. Here is Info from 'radio tune' Output A set to voice Output B set to off TX voice level set to 15 TX tone level set to 200 RX squelch set to 500 I'm wondering if I may need to attenuate the interface line between the URI and Radio. Suggestions anyone? Thanks, Gene KC2WDZ