I wrote:
> >FIR filters are not
> realizable
> >in the analog world.
> >73,
> >Doug, K4DSP
WC6W wrote:
> Hi Doug,
> Just for the history books, I can offer one example of an "analog" FIR.
> The Reticon (last I heard acquired by EG&G) FIR filters (part no.
> RT5602, if memory serves this morning) which were implemented with bucket
> brigade technology.
> I used one of those to implement an outboard CW filter about 15 years
> ago.
Yes Marv, I had forgotten the Reticon parts. The bucket brigade approach
does indeed make an FIR filter possible without resorting to a DSP.
73,
Doug, K4DSP
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