[time-nuts] Cable length calibration

Hal Murray hmurray at megapathdsl.net
Wed Jun 29 19:28:50 UTC 2016


brooke at pacific.net said:
> At one point they were looking into making a GPS time receiver where the
> cable length calibration would be built-in. 

How would you do that?

The obvious way is to compare the time you get with a known-good time, but if 
you had that, why would you want this new GPS with an unknown cable length.

You might be able to do it by measuring the DC drop.  Getting enough accuracy 
seems tough.


-- 
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