[time-nuts] Fiberoptic 10MHz link

[michael cook]

Aren't you going about this in the wrong way? You only need isolation between the gps antenna and the gpsdo, and not put the gpsdo in the roof. Or am I missing something? Optical GPS antenna links cable exist, but are expensive. Otherwise lightning surge protectors should be good enough. Some on epay a <$30.


Le 3 juin 2010 à 02:13, <lstoskopf at cox.net> <lstoskopf at cox.net> a écrit :

> 
> I have access to my roof and above through a trap door I had installed when we built the house.  Also have AC in the attic.  I've been reluctant to put a GPS up there with a direct link to the shack and computers, etc.  Has anyone done a simple circuit for conversion from a 10 MHz signal into, say, TOSLINK or such and then back for a galvanic break?  I realize that I'll be adding some delay and jitter, but for frequency locking shouldn't be a problem.
> 
> Looks like it isn't too big a problem to throw something together, but if it has be done......
> 
> N0UU
> 
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