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USB2Usart Convertitore USB seriale RS232
- Convertitore seriale USB-RS232 per aggiungere una porta COM al Vostro notebook
post 27 Feb 2025
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MMTTY in FSK
With FSK, you are not concerned about audio coming out of the sound card. You must key the FSK input to your transmitter with an interface circuit connected to a serial COM port
Portable soundcard interface
is a fairly simple circuit. the audio transformers but I used a couple of 1:1 transformers salvaged from old external modems
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With FSK, you are not concerned about audio coming out of the sound card. You must key the FSK input to your transmitter with an interface circuit connected to a serial COM port
is a fairly simple circuit. the audio transformers but I used a couple of 1:1 transformers salvaged from old external modems
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