[time-nuts] Trimble Thunderbolt baseplate size (mass)
kb8tq at n1k.org
Tue Jul 25 09:06:06 EDT 2017
It gets back to the term “optimum performance” and the Time Nut bias
towards eliminating any source of degradation. Even while locked, temperature
does get into the DAC. Blow some air on a unit and watch things move around.
It does not go unlocked. It does not exceed any of the specs on it. It does move
a bit and you can see the “bump” in a phase plot. Simply blocking drafts is a good
> On Jul 24, 2017, at 8:33 PM, paul swed <paulswedb at gmail.com> wrote:
> Interesting discussion. I simply have my TBolt bolted onto an Aluminium
> rack panel so I could rack it. I wasn't aware there was any special need
> beyond that? Right?
> On Mon, Jul 24, 2017 at 8:12 PM, Bob kb8tq <kb8tq at n1k.org> wrote:
>> The TBolt is a great unit !!
>> The main source of temperature impact is the DAC / Voltage reference.
>> Since that is a
>> “distributed” circuit, the temperature control also needs to cover more
>> than just the backplate.
>>> On Jul 24, 2017, at 6:37 PM, Norm n3ykf <normanlizeth at gmail.com> wrote:
>>> Hi all!
>>> Allowing a friend to borrow a tbolt.
>>> Is it necessary to cool (maintain a certain) baseplate temperature for
>>> optimum performance?
>>> Currenlty mounted inside an aluminum chassis. It's screwed to an
>>> aluminum sheet that covers around 2/3 the base.
>>> Norm n3ykf
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