One of the concepts that I have had trouble getting 'younger' engineers to
understand is that a digital signal IS analog! Just because you are
running at "only 10 MHz" doesn't mean that you can have 4 inch pigtales.
The actual signal bandwidth would extend up to 50 MHzor even more, and you
have to treat it like a VHF/UHF RF signal or the bits are going to get lost.
Digital is Digital only in the purely logical sense (pun very much intended,
by the way).

As for digital signal processing is concerned, just because you have
digitized the signal doesn't mean that you have eliminated all of the analog
problems. I can think of only three ways that DSP is better...1)no cross
talk in signal paths, and 2) lossless signal duplication (think of an analog
power splitter), and 3) you can do things easily that previously were just a
glimmer in an analog engineers eye (such as multiple simultaneous beams from
an antenna array?)

--
Jim
N8EE

to email directly, send to my call sign at arrl dot net