Hello I hope you are well.
Today I used the QMX for the first time. I previously set up all the security measures. Set the SWR protection leaving a maximum of 2. Also set the voltage protection, setting a minimum of 7V and a maximum of 13. Use an EFHW antenna with a 49:1
I powered my QMX with 11.4V and then made the first QSO at 14.070 with no problems. Then it went to 28.050 and the high SWR protection was activated and TX was automatically interrupted.
After that, the QMX ran out of audio, you can't even hear the band noise.
Any suggestions?
73, Juan LU9CYV
Juan