MMDVMHost Configuration

[Modem]
Port=/dev/ttyACM0
TXInvert=1
RXInvert=1
PTTInvert=0
TXDelay=300
DMRDelay=7
RXLevel=50
TXLevel=50
# CWIdTXLevel=50
# D-StarTXLevel=50
# DMRTXLevel=50
# YSFTXLevel=50
# P25TXLevel=50
OscOffset=0
RSSIMappingFile=RSSI.dat
Debug=0

Device from https://www.bi7jta.org/shop