I have the Flex 6600. During an FT 8 QSO, the radio stopped working. The panadapters are blank on all bands, there is no audio, it will not transmit. I have limited ability with some of the functions. I can change bands and frequencies and change settings, but the radio will not receive or transmit. I have checked my antenna connection and it is ok. I have uninstalled and reinstalled Smart SDR 2.3.9. But this did not help. I don't know what else to do so I need your help.