Joel Kolstad wrote:

Hey Joel, what are you doing over here. Are you a pilot too?

I've used this for subsampling, although you have to be very careful of
clock jitter when you sub-sample. a couple picoseconds of jitter on the
sampling of a 100 MHz signal is going to add substantial noise to the
signal.


(subsampling, for those here who haven't a clue what we are talking
about...this is an airplane owner's forum after all...is taking
advantage of the nyquist theorum to sample at less than the frequencyt
of the signal when the bandwidth of the signal is narrow. For example,
if you have a signal centered at 100 Mhz that only has a 10 MHz
bandwidth, you can sample it at something less than 100 MHz and still
recover all of the information. The more generally held belief is that
you would need to sample it at greater than 200 MHz in order to not lose
information).