Hi Melanie,
I thought I posted this the other day, but perhaps the system kicked me out for not posting fast enough.

The 4 bytes represent a value from 0 - 30,000.000
So fortunatly for me, the highest Byte will only be a 1 or 0.
The numbers represent radio frequency.
I have a radio that is sending me the 4 bytes to indicate what its current frequency is.
I have a number of frequency windows to play in.
I split each one of these windows up into 8 slices.
The frequency value then gets matched to one of these slices.
I use this info to control a remote antenna tuner box I made last winter.
I would bet you call this one simple.
But its over my head
Thanks
Duane