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Checking the Trimble MINI-T

EK
Erik Kaashoek
Wed, Oct 11, 2023 2:07 PM

I was lucky to buy the last Trimble Mini-T from EBay
It is now on the bench for some first testing.
There was some confusion about the antenna supply on the molex plug but
its just going straight to the antenna plug as bias so supplying 3.3V
was all that was needed to use a cheap amplified puck antenna.
Lady Heather recognizes the Mini-T as a mini Thunderbold.
The OCXO on the PCB is (as expected) sensitive to external temperature
changes so putting the Mini-T in a case with extra temperature shielding
seems to be a must.
Now I need to study Lady Heather to find out all the things it can report.
Erik.

I was lucky to buy the last Trimble Mini-T from EBay It is now on the bench for some first testing. There was some confusion about the antenna supply on the molex plug but its just going straight to the antenna plug as bias so supplying 3.3V was all that was needed to use a cheap amplified puck antenna. Lady Heather recognizes the Mini-T as a mini Thunderbold. The OCXO on the PCB is (as expected) sensitive to external temperature changes so putting the Mini-T in a case with extra temperature shielding seems to be a must. Now I need to study Lady Heather to find out all the things it can report. Erik.
KL
Keelan Lightfoot
Thu, Oct 12, 2023 6:06 AM

Erik,

I think I ended up with the second-to-last Mini-T from the same seller!
Trimble's official documentation for the module is pretty lackluster,
especially with respect to pin 5, 'V Antenna'.

Are you familiar with Trimble's Visual Timing Studio? It's a pretty capable
tool for working with Trimble's timing products, and available free. I have
used it with my UCCM in TSIP mode, and given that the Mini-T and the UCCM
have the exact same architecture, I imagine Visual TIming Studio would work
with the Mini-T as well, even though the Mini-T isn't mentioned in the
release notes for VTS.

  • Keelan

On Wed, Oct 11, 2023 at 9:26 AM Erik Kaashoek via time-nuts <
time-nuts@lists.febo.com> wrote:

I was lucky to buy the last Trimble Mini-T from EBay
It is now on the bench for some first testing.
There was some confusion about the antenna supply on the molex plug but
its just going straight to the antenna plug as bias so supplying 3.3V
was all that was needed to use a cheap amplified puck antenna.
Lady Heather recognizes the Mini-T as a mini Thunderbold.
The OCXO on the PCB is (as expected) sensitive to external temperature
changes so putting the Mini-T in a case with extra temperature shielding
seems to be a must.
Now I need to study Lady Heather to find out all the things it can report.
Erik.


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Erik, I think I ended up with the second-to-last Mini-T from the same seller! Trimble's official documentation for the module is pretty lackluster, especially with respect to pin 5, 'V Antenna'. Are you familiar with Trimble's Visual Timing Studio? It's a pretty capable tool for working with Trimble's timing products, and available free. I have used it with my UCCM in TSIP mode, and given that the Mini-T and the UCCM have the exact same architecture, I imagine Visual TIming Studio would work with the Mini-T as well, even though the Mini-T isn't mentioned in the release notes for VTS. - Keelan On Wed, Oct 11, 2023 at 9:26 AM Erik Kaashoek via time-nuts < time-nuts@lists.febo.com> wrote: > I was lucky to buy the last Trimble Mini-T from EBay > It is now on the bench for some first testing. > There was some confusion about the antenna supply on the molex plug but > its just going straight to the antenna plug as bias so supplying 3.3V > was all that was needed to use a cheap amplified puck antenna. > Lady Heather recognizes the Mini-T as a mini Thunderbold. > The OCXO on the PCB is (as expected) sensitive to external temperature > changes so putting the Mini-T in a case with extra temperature shielding > seems to be a must. > Now I need to study Lady Heather to find out all the things it can report. > Erik. > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com >