GPS Timing Alernative??

Has anyone implemted this product into their network instead of purchasing a CMM or CMMmicro. And if so how did it work???

the things which i did not like about this product :-

1. there is no way you can know if its really seeing the satellites.

2. by design, if the unit cannot get sync from the satellite it will create its own sync.

So you would really won;t notice if your cluster is on satellite sync or manual generated sync. chances of you getting out of sync.