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Decoding level info on esp32 #7

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f4goh opened this issue Dec 26, 2023 · 1 comment
Open

Decoding level info on esp32 #7

f4goh opened this issue Dec 26, 2023 · 1 comment

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@f4goh
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f4goh commented Dec 26, 2023

Hello,
I have the simple circuit connected to a yaesu Ft-7900 on data packet din 6.
the fsk signal on GPIO36 VP are 50mVpp. It seems too low.
When i put the speaker output, that's works.
What is the minimum level in Gpio36 to decode FSK ?
the txing are working well.
73

@nakhonthai
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You can see ADC Attenuation.
Mininum 0dB at 100mV-950mV(50mVpp-457mVpp) and DC Offset at 950mV/2 (Vdc at GPIO36)
image

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