2018年1月16日 星期二

how to connect mmdvm modem to gm300

diy cable connect like this

MMDVM PTT 3-----------------------RADIO PIN 3 PTT
MMDVM TX 5----------------------RADIO PIN5 TX AUDIO
MMDVM RX 6----------------------RADIO PIN 11 RX AUDIO
MMDVM GND 9 or 10----------------------RADIO PIN 7 GND




first kill MMDVMHost
then
MMDVMCal /dev/ttyAMA0
keyboard D for DMR mode
key board space for TX
then Adjust TX blue 100K P41(near TP42)
you can see IF Spectrum Left 5 line Right 5 line
Adjust TX BLUE 100K P41  the Red line line is the lowest then ok
then press q to quit

vi /etc/MMDVM

remove # to enable
CWIdTXLevel=50
D-StarTXLevel=50
DMRTXLevel=50
YSFTXLevel=50
P25TXLevel=50

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