TxSrv writes:

An electronics expert now.

Actually, it's a matter of physics, not electronics. Any system that
interacts with the physical world is constrained to use analog systems
to do so. The accuracy of these analog systems constrains the entire
system as a whole, irrespective of any use of digital components.
Therefore no digital system that interacts with the physical world
(and this includes all aviation navigation systems, as well as things
like video and audio) can be superior in accuracy to the best analog
systems.

How about a frequency counter?

How about it?

Propose your circuit design here for an analog frequency counter
(they exist), to be the "best analog," as good as a digital.

If the frequency exists in the real world, the best analog system is
at least as good as any digital system.

--
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