[time-nuts] Another Trimble Thunderbolt-like GPS?

aartmolsen at comcast.net aartmolsen at comcast.net
Mon Dec 19 20:49:28 UTC 2011


I think the PCB cut off at ebay # 300628220912 is an image artifact. If you look carefully you'll see the "cut" extend into the gray area on the right. Fluke-L (it's "L", not i) wouldn't foist a sawn-off board to sophisticated buyers. 


Aart Olsen 

----- Original Message -----
From: "Ed Palmer" <ed_palmer at sasktel.net> 
To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com> 
Sent: Monday, December 19, 2011 9:16:32 AM 
Subject: Re: [time-nuts] Another Trimble Thunderbolt-like GPS? 

It's not paranoia if it's true! :-) 

Take a look at the pictures for # 270725678037 . These boards don't 
have the connector cut off of the corner of the board. Good eyes. 

Ed 


On 12/19/2011 12:47 AM, Peter Bell wrote: 
> Most of the parts (and their grouping) seem the same as the NTPX26AB - 
> which based on my quick play with one seems to have basically the same 
> hardware as a Thunderbolt. The only strange thing I noticed was that 
> although it would work with the Trimble tbolt software Lady Heather 
> couldn't recognize it. 
> 
> Maybe I'm being paranoid, but looking at that photo it looks like part 
> of the board has been cut off - this would also explain the slightly 
> evasive "I'll tell you where the power goes after you buy it". Of 
> course, this won't necessarily stop it from working, but it might be 
> worth checking. 
> 
> Regards, 
> 
> Pete 
> 
> 
> On Mon, Dec 19, 2011 at 12:41 PM, Chris Albertson 
> <albertson.chris at gmail.com> wrote: 
>> There are some Trimble GPS receivers on eBay. They say "10Mhz 1pps" 
>> but they are not Thunderbolts. These are an A4 sized PCB, no 
>> enclosure. The seller says it takes 48VDC to run. Seems reasonable 
>> as there is a large DC/DC power converter in the board. 
>> 
>> Anyone know more? How to they compare to the Thunderbolt? 
>> 
>> Good photos at Auction #300628220912 
>> -- 
>> 
>> Chris Albertson 
>> Redondo Beach, California 

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