[time-nuts] Racal 1992 drift after standby

iovane at inwind.it iovane at inwind.it
Thu Aug 27 20:41:50 UTC 2009


In my experience limited to two units, the 04E works very well, and I've been prudent claiming an aging of one part in 10E10 per day. I suggest to check your unit. My reference was Rb (LPRO). They are both 02M.
The 02M has a tag on the left side looking from the front. If the tag was lost, there are two holes. 02M uses the military GPIB language (MATE/CIIL), and, as far as I know, doesn't respond to the standard 1992 language.
It exists an enanched version of the 04E, that is the 04ES, but AFAIK it was available only in England.
At power on, I read 1992 first, then 8572 0404.

Antonio I8IOV

> Ed,Mine comes out of standby pretty much where it is going to be. I see from
> information posted that I seem to have option 4E. Mine doesn't look quite
> that good compared to GPS. I believe mine is an 02M model though there is
> nothing on the unit to say so. The manual says the GPIB should be a 401820
> but mine is labeled 411820. Maybe a later version. I haven't had time to
> hook a GPIB controller to it yet. Maybe next week.
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