Howard Winter wrote:
> Why are you worrying about DC balancing a radio system?

It simplifies the data slicer.  With a little more sophistication
determining the high/low threshold, all you need is to encounter a high and
low "often enough", like every few bits.  The signal from a UART would be
sufficient as long as there were a steady stream of characters.

> I can see why
> you'd want to with cable linked comms,

I don't.  Many cable systems don't require this at all because there you
have an absolute 0 voltage reference.

> but radio (especially if it's
> FM) really doesn't care about it, as far as I know...

FM doesn't, but many low cost systems are carrier keyed AM where it does
matter.


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