All the the Nortel Tbolts had DOCXO but not the regular Tbolts or the 1/2
Tbolts that have been purchased through time-nuts (though they are nice
too). A few lucky people got the AT&T bolts (VERY RARE) which have the
nice OCXO too but with extra stuff on the board.
These nortel tbolts are much nicer because of the DOCXO which is a much
taller package than what's found in the standard Tbolt and the 911 Tbolts.
The Oak/McCoy are the same as the Corning which eventually became the
Vectron OC-050 (because of buyouts) which is what this one up for auction
probably is relabeled as trimble of course. I'm not sure about this one
but I know some of these nortel Tbolts talk SCPI just like the Z3801 but
not the same commands as the Z3801.
--------------------------------------------------
From: "Bob Camp" <[email protected]>
Sent: Tuesday, October 27, 2009 20:48
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Subject: Re: [time-nuts] Trimble copy of Z3801
Hi
All of them had double ovens. They came from a variety of suppliers.
Vectron / Norwalk was the original source. At various times they came
from Oak / McCoy, PTI, and possibly CMAC.
Bob
On Oct 27, 2009, at 12:31 PM, <[email protected]> wrote:
It's a double oven oscillator (vectron I believe) as opposed to the 1/2
tbolts that only have a single oven that everyone else has from the 911
units.
This one has other additional features like full power supply
conditioning (just add 48v power supply) and can have firmware upgraded.
They're pretty nice. There is another version that has an even nicer
DOXCO. Need a rs485 convertor though. can't connect rs232 directly
--------------------------------------------------
From: "John Green" <[email protected]>
Sent: Monday, October 26, 2009 16:10
To: <[email protected]>
Subject: [time-nuts] Trimble copy of Z3801
There is what appears to be a Trimble copy of a Z3801 on eBay. number
370234484785.
I can't seem to find any info. Is this really a Z3801 copy or just a
Tbolt
in a fancy case?
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