The Factory software automatically switched LSB to USB when tuning above 10MHz and USB to LSB when tuning below 10MHz.
For whatever reason my uBitx had the wrong BFO frequencies saved as it came shipped. While the screen said USB I was hearing LSB and vice versa.?
I attempted to fix this using the Raduino calibration process, but made the mistake of clicking the encoder switch instead of clicking PTT. After repeating the process a few times the audio out sounded way different (higher overall pitch after each attempt) and I could not hear anything but static out even on known local AM stations.
When I switched to Ian's firmware I got to see the stored frequency for the sideband I was on. (Others may show that but I hadn't the clarity of mind to recognize it like I did the day I switched to Ian's firmware.) The LSB BFO frequency was way up at 12002.xxx
I looked at the code for the default BFO (11995.000). I then tuned the calibrate BFO there and saved by clicking PTT. Tuned around to check if that was USB or LSB now saved for my LSB BFO frequency.??
Using the menu again, I switched mode to USB, then selected Calibrate BFO. (How many times I screwed up here and went into the menu just before and had to set the right offset again... Which seemed to keep changing... :-P) I then found then default in the code (11997.000) USB BFO frequency to be perfect for my filter as well.
Disclaimer: I'm at work away from my uBitx and notes. The default BFO frequencies were correct for my filter.?
Whichbelongs to which sideband I'll leave to the future operators running the tune up process. I'm writing this up in case someone else runs into the same issues in the future.
73 de Jacob AG7CT
