Hi All,
I'm looking for general comments on this, rather than specific advice.
I'm prepared to do the work if I have to. What I have is working OK, but
it needs some more work to be really reliable.  What I'd like is an
indication from anyone if what I'm doing is quite feasable, or I need to
go down another track.

I'm communicating between two PIC's by radio on 433MHz, both ways.
I'm using manchester code with 25uS 1/2 bits (50uS for a full bit)
I'm sending a start bit of 100uS long, followed by 15 or so bytes of
data.
I'm sending a 4 bit security code, as more than one of the devices will
be on the same 433Mhz frequency.
One is the master.  It instructs the other to do a task, and then send
the result back.
I'm sucessfully finding the start bit, timing out if there are errors,
switching between Tx and Rx, and in general it's OK, but it can miss
data now and again. I know I need more work on timing between commands
between the two PICs.
So what does anyone think?  Continue with it, or is there something
better?
(E.G. How the heck do they get that data transfer speed of hundreds or
thousands baud, down an audio phone line?)
Thanks and regards to all
Howard.

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