Hello:?
I red a previous message where an individual used a PC board attached to the back side of a Nection display. ? It suppose to have got rid of the display noise that was making ?it back in to the Ubitx receiver. Was wondering if this solution ?would solve your situation?
73 Dave WD8AJQ
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On Oct 31, 2021, at 5:50 AM,
ramonlh@... wrote:
Hola Peter,
Indeed, there is a noise. It is produced by the MISO / MOSI signals from the TFT display. Occurs when refresh data is sent to the screen.
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In the case of the Raduino32, the Smeter signal is continuously refreshed, every second with the clock update and when the frequency is modified. In the original Raduino it is also heard, but since Smeter does not exist, it is less noticeable.
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In my equipment it is only audible when there is no antenna connected and it is not audible when there is noise or signal even if it is weak. When an antenna is connected it is inaudible.
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I know that doesn't totally solve the problem, but it is the best I have been able to achieve.
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