Gents,
Wrote: All of this design and mod info is wonderful and great to fill an
engineering project workbook.
Reply: True. I have all the precision oscillators I need. Four Rubidiums and
two high stability crystal units. Four nice sized salvaged HP cases that have
working power supplies. So all I have to do is install the oscillators then
synchronize them with my two Lucent GPS receivers.
The VLF receiver is for a cross-checking the GPS and serving as a backup phase
lock source.
Wrote: You can spend about $500US and get a complete HP working system
including GPS antenna.
Reply: But you missed my original point: that I had all this stuff to use.
Wrote: which I have been monitoring to 10-12 for 14 mos now and it is stable.
Reply: True, mostly. An article I had, but lost, explained that rubidium
disciplined oscillators had better stability and explained why Allan deviation
charts didn’t really give a true picture. So that is why I want to synchronize
mine.
Regards,
Perrier
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