[time-nuts] Trimble 57963

[Bob kb8tq]

Hi

5V and even 3.3V OCXO’s are fairly common these days. They show up in 
the catalog pages of a number of outfits and have for a decade or two.
 
Trimble buys OCXO’s on the open market. They have used several suppliers 
over the years. The spec’s are indeed unique to Trimble, but by no means exotic.
 
On > 90% of all OCXO’s made, having a spec / part number that is unique to an 
application makes the procurement process easier (on both ends). 

Bob

> On Dec 10, 2019, at 7:38 PM, Roger Tilsley <j.r.tilsley at runbox.com> wrote:
> 
> Greetings Robert,
> 
> I have one of these and it works very well running on 6 V.  I have been warned off low operating voltage OCXOs by an OCXO manufacturer.  This manufacturer would not countenance manufacturing OCXOs operating on 5 V.  There is little technical information available,  I tried Trimble for info and was told that it was designed for a specific customer and that all the information was customer confidential - if I had paid a contractor a substantial sum to produce a specific design for me, I would not be happy if the manufacturer sent technical details to anyone who enquired!  I can therefore understand the policy and it does explain the shortage of technical information.
> 
> Regards,
> Roger T. 
> 
> On Tue, 10 Dec 2019 09:43:23 -0500, Robert DiRosario <ka3zyx at comcast.net> wrote:
> 
>> I just received an Trimble 57963-D GPSDO with a Trimble 73090 OCXO.
>> 
>> There is very little information about this on the web.  What voltage 
>> does this run on?
>> 
>> Some information I found online says 6 volts.  The seller says 5.5V.  I 
>> got it from ebay / China.
>> 
>> I did get a breakout board and the 50 pin cable. \
>> 
>> Thanks
>> Robert
>> 
>> 
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> 
> 
> 
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