SmartSDR 1.10.16 software I've experienced two crashes of my 6300. Along with the crash the radio also was emitting a tone from the speaker. I tried to shut down the radio with the power button, but it wouldn't shut off the radio. I had to shut down the power supply. After restarting the radio it seems to work as it should, but this has happened twice. Both times that I experienced this problem I was in the listening mode, I wasn't doing anything with the radio but listening to a QSO. I found where this problem was reported about 1 year ago, but I haven't seen a solution.