[time-nuts] FRS-C spec

Brian Kirby kirbybq at bellsouth.net
Tue Jul 26 21:29:05 EDT 2005


I forgot the measurements I made a few months ago

for 100 second modified Allan variance 1.17x10-12 (FRK-L timebase),
second test 2.48x10-12 (Z3801A timebase), third test 2.16x10-11
(Motorola M12+ GPS RX comparison)

for 1,000 second modified Allan variance 2.07x10-12 (Z3801A Timebase),
second test 1.17x10-12 (M12+ RX Comparison), 6.72x10-13 (FRK-L timebase)

for 10,000 second modified Allan variance 7.71x10-13 (Z3801A timebase),
7.16x10-13 (M12+ RX comparison), 8.84x10-13 (FRK-L timebase)

Brian - N4FMN

chuck at frequencystandards.com wrote:

>Is anyone familiar with the Efratom model FRS-C rubidium? I am trying to
>find out if there is a published spec for jitter on it.
>If it isn't available, does anyone have one of these units and knows
>what it typically runs on theirs?
>Thanks, Chuck Norton
>
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