Ulf,
You need to load the KD8CEC v1.20 software into the original Nano of the Raaduinno for the PC-based Memory Manager to be able to read the EEPROM for the calibration data.? Loading the KD8CEC Nano program will not erase the calibration data in EEPROM.? You can return to the stock software by downloading the Nano file from GitHub.
Returning to the stock firmware requires using the Arduino IDE as there is no hex file.? There are good instructions here:
I should have first asked if you are sure you have the correct KD8CEC software loaded into the Nano?? ?I will assume that you are using XLoader and have loaded the?UBITXV5_CEC_V1.200_NX.hex from the UBITXV5 folder.
Even if the calibration is at the default values, you should still be able to set the BFO and then calibrate the frequency, with the last step being readjusting the BFO for the best signal,?
You can use the following with the KD8CEC software and Nextion display:
The difference is how you set the values using the KD8CEC settings menus.
73
Evan
AC9TU