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RE: Isolation transformer and 9600 baud.

At 01:11 AM 2/21/2006, Alan P. Biddle wrote:
>John and Mak,
>Clearly I was ignoring the need for low frequency response.  Thanks for the
>So, if a transformer isolation is not a viable option, could one use
>capacitors on both sides of the data line to give protective isolation, and
>still handle the signal properly?   Consumer sound cards have rather unknown
>robustness.  Of course I have been operating a hardware TNC, tied to the
>computer through the serial port, for years with no smoke.

You could always use an optocoupler.

73 de VK3JED
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