EFRATOM LPRO-101 Rubidium 10MHZ Frequency Standard

Robert E. Seastrom rs at seastrom.com
Sun Apr 19 10:02:42 CDT 2009

Most of the ones I see on eBay are currently located in China.  Wonder
if they're working pulls or counterfeits...

Yes, it's a sad state of affairs when "failed acceptance testing, for
sale anyway" is the first thing I think of when I think of China.


Frank Gentges <fgentges at mindspring.com> writes:

> I seea bunch of people selling the Efratom LPRO-101 rubidium standards
> on eBay and elsewhere.  One vendor shows they have 453 and others are
> selling them in lots of 20.  Price seems to be $100 each or less.
> Most likely, these are from cell phone sites that have either been
> shut down, like AMPS, or others upgraded with newer standards because
> these are not satisfactory.
> Anyone know what is going on?  Has anyone bought one of these?
> They would seem to be very useful to synchronize modern communications
> signal processing techniques.
> Frank K0BRA
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