[time-nuts] GPS splitter

Jason Rabel jason at extremeoverclocking.com
Sat Feb 24 11:32:49 EST 2007

If the thunderbolt is already supplying 5V to the antenna, then I would
leave the antenna power pin open (no power) on the Jupiter.


>OK so the splitter is a mini circuits ZAPD-21 .5 - 2 Ghz splitter.
>The center doesn't have a path to ground.
>I mounted it on my rack next to my Thunderbolt clone and hooked it up  
>leaving the other port open.
>The thunderbolt appears to be working fine and I have 5 volts on the center

>The other unit I want to hook up is a Jupiter engine disciplining a 10 Mhz

>On the Jupiter I hooked pins 1&2 together so it also puts out 5  volts.
>Any words of encouragement or discouragement before I hook up my Jupiter to

>the splitter?
>If/when it locks up I want to compare the 2 units. I have a handheld 2  
>channel scope.

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