[time-nuts] Tuning a Trimble Thunderbolt

Pete Stephenson pete at heypete.com
Wed Apr 22 06:41:36 EDT 2015


On Tue, Apr 21, 2015 at 1:23 PM, Bob Camp <kb8tq at n1k.org> wrote:
> Hi
>
> inevitably on these devices, there is a marketing brochure that hits the high points
> in the specification. That information is public and intended to get “buzz” going on
> the product. Once an OEM gets serious about the product, (the TBolt is targeted
> at OEM’s) a detailed specification gets written. It may be in the form of detailed
> specs or in the form of a test regime / service scenario the unit is expected to
> perform in. That document is rarely available to the public.

D'oh.

> How are you measuring the holdover performance? You mention that you have
> no counter and no other standards.

When one uses Lady Heather to switch the Tbolt to manual holdover,
Lady Heather continues to monitor the offset between the oscillator
and GPS. No doubt this method isn't nearly as good as using a counter
or some other standard, but it's what I have.

Cheers!
-Pete

-- 
Pete Stephenson



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