I'm a renter so I don't get much downtime in the plane to play with radios etc. It seems like every flight I'm fighting with the radio to get it set where its comfortable and functional. This last flight everything was OK except for the transmit volume. Is there a knob to adjust that? I don't think so. I have a volume and squelch knob that control the intercom, that volume was fine, I could hear myself at a comfortable volume without transmitting. The radio I was using to monitor ground/tower was set to a comfortable level. It was just when I went to transmit to ground or tower my voice would just blare into my headset way too loud. Their responses were fine. Any ideas? The only thing I could think of, if there is no knob, maybe I need to turn up all those other volumes then turn down my headset volume. Problem is I never know its too loud till I go to call the tower. I don't have time to monkey with the volumes while I'm trying to get taxi instructions and talk. I guess I need a radio check freq. to mess with before I call them up.