Hi Peter, Happy New Year!
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Have you viewed the calibration video by Ashhar Farhan?
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Note that you need to hold the tuning knob (encoder) for up to 15 seconds for the calibration screen to come up.? Ashhar Farhan does this at around 4:15 in the video.
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Also, note that the BFO tuning page no longer works.? Any audio spectrum analyzer can be used to measure audio amplitude by frequency between 300 and 3,000 Hz.? Here is a PC-based software:
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It may be that your encoder is faulty if you can not get to the settings page.? There could be a wiring issue between the encoder and the Raduino board.??
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You can also try reloading the firmware to the Nano on the Raduino board.? There is another video that demonstrates that here:
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73
Evan
AC9TU
