[time-nuts] Trimble copy of Z3801

[TheInfamousFlavio at hotmail.com]

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" <lists at cq.nu>
Sent: Tuesday, October 27, 2009 20:48
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
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, <TheInfamousFlavio at hotmail.com> 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" <wpxs472 at gmail.com>
>> Sent: Monday, October 26, 2009 16:10
>> To: <time-nuts at febo.com>
>> 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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>
>
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