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

Chuck Forsberg WA7KGX N2469R caf at omen.com
Mon Dec 19 11:27:13 EST 2011


I see fluke.i selling older GPSDOs consisting of a large board with the guts
(more or less) of a Thunderbolt, a smaller board with switches and 
indicators,
and a ribbon cable to connect them.

With a FW of 1.88 and date code a few years older than a Thunderbolt,
I would guess this was a forebear to the Thunderbolt.

On 12/19/2011 08:09 AM, Peter Bell wrote:
> That would make sense - when I was using one of the original Palisade
> units I remember that once it was tracking it only output the time
> packet every 150 seconds - which seemed rather strange for something
> that was being sold as a timing device.  You could set it up to output
> a time packet with each 1PPS pulse, but you had to send the commands
> that did this via a different port than the one that the data came out
> of.  I'm sure this implementation decision must have made sense to
> someone, but not to me...
>
> Regards,
>
> Pete
>
>
> On Mon, Dec 19, 2011 at 8:21 PM, Mark Sims<holrum at hotmail.com>  wrote:
>> Lady Heather depends upon the  ability of the Thunderbolt to broadcast the time message automatically every second.   Apparently the Palisade type units do not support this mode of operation.   It might be possible to set up the software so that it requests the time message continuously and only accepts the time messages that indicate that the time has changed,  but without a board to try and maybe some documentation who knows?
>>
>>> The only strange thing I noticed was that
>>> although it would work with the Trimble tbolt software Lady Heather
>>> couldn't recognize it.
>>
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-- 
Chuck Forsberg WA7KGX N2469R     caf at omen.com   www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
   Omen Technology Inc      "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430





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