> I just wanted to get some feedback whether I'm thinking of this
> in the right way, or whether there is some other technique that
> is generally used for timing pulses etc

A quick way would be to use a scope to get some ballpark (or
even actual) idea of how the stream is put together.

Is this a commercial transmitter ? If so you may find the format
and timing on the web. You could use timing code to confirm
that

Otherwise what you suggest should work with a 3-pin detector
that has a logical output (might be inverted), as they strip the
carrier frequency out and present the PIC with just the data

There could be several timings present. The pulse itself, a "0"
space, a "1" space, the inter-burst space, possibly others, that
will probably be multiples of a base period. The faster you have
the PIC running the better the resolution, although this may not
matter too much if the periods are distinct and relatively long

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