Convertitore seriale USB-RS232 per aggiungere una porta COM al Vostro notebook
post 08 Sep 2023
Interface Radio Links →
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
PSK31 interface
Resistor combinations may need to be adjusted for the correct audio signal levels required for your operating equipment
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
Resistor combinations may need to be adjusted for the correct audio signal levels required for your operating equipment
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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