[time-nuts] Purchasing a Trimble GPS timing solution

David Hilton-Jones David.Hilton-Jones at clneuro.ox.ac.uk
Mon Jul 13 09:37:28 UTC 2009


I note the Chinese supplier offers two kits, one more expensive than the
other. The difference is the GPS aerial. Anybody any experience of the
difference between them?

David

>>> Mark Sims <holrum at hotmail.com> 12/07/2009 23:21 >>>

I have purchased several items from that seller without problem.  He
ships via Hong Kong post which gets handled by the US postal service... 
never had any customs duties, etc.  All items arrived within a week or
two.  A couple of times I have emailed him asking questions about an
item and have never received a reply.  Ebay seller Fluke.l is another
supplier with a good reputation.

Now on the subject of Thunderbolt antennas...  I recently got an
Ashtech Z12 geodetcic grade GPS receiver and antenna.  I now know where
my a$$ is within a couple of centimeters.  I have spent the last couple
of days asking a Thunderbolt where it is using several different
antennas (and the Self Survey command).  Should have the numbers
crunched in a day or two...  so far it looks like antenna issues may be
fairly irrelevant.
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