In article ,
Ray Lovinggood wrote:
Ken,

Look at the SSA webpage,

http://www.ssa.org/Calibration.asp

and you will find what you need.

I recently sent my Volkslogger to Carl Herold and he
had it recalibrated and returned to me within days.
No problems.

Well, I'd say it stronger than that. I called that
place in Washington from the SSA website to ask about
LEVEL 1 (for altitude world records) certification.
They didn't know what the heck I was talking about
(GPS logger, huh?)

As far as I'm concerned, CH is the only game in town.
I have no idea how Minden get's their stuff World Record
certified; perhaps mailed out of the country?
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Mark Boyd
Avenal, California, USA