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uBITx V6 audio problem


 

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Hi,

I made a short circuit and damaged Raduino, I couldn't change the band
and frequency. After replacing Raduino and loading the firmware, the
display started working normally, but there is a problem with audio. The
sound is distorted and has no full power. I replaced LM386 in audio, but
that didn't solve the problem. Can anyone help me locate the fault?

--
73
Adam SP5AWL

Wys?ano z telefonu Samsung


 

Hello Adam,

Since you replaced the Raduino board, the issue is most likely the BFO and frequency calibration.? Here is a video from Ashhar Farhan on how to calibrate the V6.


The one issue is that the BFO Tuning aid no longer works.? Instead, use a PC-based Audio Spectrum Analyzer.? The red lines on the BFO Tuning Aid are 300 Hz and 3000 Hz.? Here are two possible free downloads:



73
Evan
AC9TU


 

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Hi Evan,

Thank you for your quick response. I loaded the KD8CEC v1.20 firmware and could not find the "Setup BFO" setting on my radio.

73

Adam SP5AWL

W dniu 21.03.2024 o?09:58, Evan Hand pisze:
Hello Adam,

Since you replaced the Raduino board, the issue is most likely the BFO and frequency calibration.? Here is a video from Ashhar Farhan on how to calibrate the V6.


The one issue is that the BFO Tuning aid no longer works.? Instead, use a PC-based Audio Spectrum Analyzer.? The red lines on the BFO Tuning Aid are 300 Hz and 3000 Hz.? Here are two possible free downloads:



73
Evan
AC9TU
-- 
Pozdrawiam,
Adam SP5AWL 73!


 

Adam,

I assumed that you were using the stock firmware.? In addition to the KD8CEC firmware, did you change the display to a Nextion?? ?The KD8CEC firmware only works with a character display or the Nextion.? If you have converted the display to a Nextion, you can get to the settings through the "Yellow Box."? This comes up if you press and hold the encoder.? Once it is up, you rotate the encoder until the Settings selection and press it again.? The box disappears, and you need to press the encoder again.? Then, turn the encoder past the Exit selection, and the calibration and BFO selections appear.? Press on the one you want.

73
Evan
AC9TU


 

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Evan,

I bought a second-hand radio equipped with a Nextion display and do not know what firmware was loaded. I loaded the KD8CEC firmware but did not know how to use the setup function. Thanks to your support I found the BFO setup and I am trying to calibrate the radio. Thanks a lot.

BTW. Is there a calibration for an encoder? That installed on the radio is not precise, when I set the freq step for 100Hz, and rotate the encoder one step forward or backward the freq changes by 200, 300 sometimes 400Hz.

73

Adam SP5AWL

W dniu 21.03.2024 o?15:42, Evan Hand pisze:
Adam,

I assumed that you were using the stock firmware.? In addition to the KD8CEC firmware, did you change the display to a Nextion?? ?The KD8CEC firmware only works with a character display or the Nextion.? If you have converted the display to a Nextion, you can get to the settings through the "Yellow Box."? This comes up if you press and hold the encoder.? Once it is up, you rotate the encoder until the Settings selection and press it again.? The box disappears, and you need to press the encoder again.? Then, turn the encoder past the Exit selection, and the calibration and BFO selections appear.? Press on the one you want.

73
Evan
AC9TU
-- 
Pozdrawiam,
Adam SP5AWL 73!


 

Adam,

There is no configuration setting for the encoder.? I suspect it is a detent encoder.? Those seem to have issues when the pulse is on a detent.? Look for an encoder without detent in the 12 to 18 PPR steps.

73
Evan
AC9TU