snaulty,
There are three major steps that all need to be done.
1 - Adjust the BFO so you can hear the low beating tones
2 - Calibrate against a known AM signal.? I use a signal generator that I have verified to be on frequency.
3 - Adjust the BFO to hear voices in the 300 to 3,000-hertz range.
Have you used the BFO Tuning Aid?? Do you see a plateau?? If there is no plateau, I believe you have the wrong software loaded, or the calibration is far from adjustment.??
I have recently read two reports of a dead receiver traced to a failing Si5351 clock chip.? I had this happen to one recently purchased v6 that I worked on for another Ham.? I could not find a plateau with that BFO either.? I had to replace the Raduino board as I did not have time to replace just the Si5351 chip.
With the KD8CEC software, a PC program can save the calibration and other configuration parameters.? It is Memory Manager:
The program is here:
Mark, AJ6CU has been updating and expanding the hardware base for the KD8CEC software.? Here is a link to his GitHub site.? He is developing extensions and improvements to Dr Lee's software.
If you load the KD8ECE firmware back on the v6, use the memory manager program and post a saved file.? That can tell us if there are valid values in the calibration settings.
73
Evan
AC9TU
