New launch TYT TH-9800 29/50/144/430 MHZ QUAD BAND TRANSCEIVER Mobile Car Radio
The radio is a Chinese POS. I should have expected that. While transmitting using DTMF commands the tones comes out of the AF output at max volume (no matter where the volume knob is set). It is so loud that the AF mutes itself until the radio is powered off and then back on. Same thing happens with the heat warning beeping at max volume, which seems to happen in every conversation. I discovered this problem while wearing an earphone which made it especially annoying but it does the same thing on speaker to