[time-nuts] Rubidium Performance

[Brian, WA1ZMS]

Thanks John!


-Brian, WA1ZMS


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of John Ackermann N8UR
Sent: Friday, February 03, 2012 9:41 PM
To: Time-Nuts
Subject: [time-nuts] Rubidium Performance

Someone earlier today made the point that for all the talk about the FEI
rubes, there hasn't been any real performance info posted.  That prodded me
to start an experiment I've been meaning to do for a while.  I have samples
of all three of the common telco Rb standards -- Efratom FRS, Datum LPRO,
and Fe8-5680.

Over the next couple of days I'll do measurement runs of each of the three
versus an HP-5065A laboratory Rb (for ADEV), and a Wenzel ULN (for phase
noise).  I'll collect long enough to get solid ADEV out to at least 1000
second tau on each unit.  I have the FRS test running now.

If all goes well, I'll post the results early next week.

John
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