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Incorrect PWM generation - Version imprimable

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Incorrect PWM generation - Eismeer - 17-04-2025

I am designing an amplifier and a radio frequency switch (for operation on one antenna) for your project.
During the process of detecting the PWM signal, I noticed some oddities:
- the PWM test lasting 10 sec passes perfectly
- during real operation for transmitting the PWM signal sometimes disappears for up to 100 ms
- after the end of the transmission, the PWM disappears instantly, but the transmitter still transmits the signal for almost a second