[time-nuts] 10 MHz 'failover' switch?

Bob kb8tq kb8tq at n1k.org
Fri Jul 27 12:44:25 EDT 2018


Hi

Isolation in a carefully managed test setup can be done (with enough money to spend). Isolation it the real 
world with grounds and cables running here and there is likely to be a challenge. At least that’s been the case
on the few dozen of these systems I’ve designed and put into production ….

Bob

> On Jul 27, 2018, at 11:29 AM, ed breya <eb at telight.com> wrote:
> 
> Getting great isolation at 10 MHz is the easy part, given enough switching elements and control. One question is whether the switchover needs to be transparent (glitchless), without adding or losing any clock cycles, and ideally with no phase shift. This would involve a much more sophisticated system, with two or more redundant references locked together, at least short-term.
> 
> Ed
> 
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