Offical release stable version
Note:Keep both units the same version
Based on V1.72_build002(Release):
1.Rotate encoder driver is optimized,more smoother and less losing of step
2.Total RF GAIN=1/4 RF GAIN setting when AGC is off,
   prevent sudden volume increase
3.Rx volum step is optimized
4.Lower the MIC GAIN,prevent picking up too much background noise