Trimble t01 files failing to produce valid data.

Maria Eugenia Gomez eugegomez80 at
Thu Jun 9 21:24:24 UTC 2022

 I think it shouldn't be the reason, but, have you tried fixdatweek utility
before converting dat to RINEX?
M. Eugenia

El jue, 9 jun 2022 a las 1:15, Camilo Rada (<camilorada at>)

> Hi all,
> I need some advice from this community. I have over a dozen of Trimble
> R7 and a few 5700 receivers that form a long term monitoring network.
> While preparing 5 of them to be installed in a new location, I found
> that the .t01 data files they produce fails to generate a valid .dat or
> RINEX file. The five units have the same problem. I'm trying runpkr00
> (both linux v2.0 and windows v6.04), and it produces a very small DAT
> file, and with the -v option reports a status 29 or 30 (is 0 when all
> works). I've also tried the Trimble convert to RINEX utility (windows).
> I haven't been able to get the newer versions of this utility to work,
> but older ones produce an error "gps time of week out of range".
> I've also tried Trimble Online utility
>, and it fails with
> the error "Error: unable to convert to RINEX form".
> A few of the produced DAT files did produce a valid RINEX using teqc,
> but they contain only 3 to 10 observations where there should be
> hundreds of them. Most of the DAT files just produce empty observation
> files.
> My normal workflow is with runpkr00 (linux v2.0) and teqc, and that
> still works in older files produced by this very same receivers.
> Although, those files are also older than the last GPS week roll over.
> However, the firmware version is 2.32, which should handle the rollover
> correctly.
> I've attached an example of a .t01 file that is failing to convert to
> Does anyone had a similar problem? Does it has to do with the receivers
> or the t01 to DAT conversion? Any known solutions or workarounds out there?
> There is nothing suspicious in the receivers behavior. They report that
> they are tracking satellites and logging data. I've tried with different
> antennas and antenna cables, and the problem persist. I've used the same
> CF card in all tests, but I doubt that could be the problem if the files
> get written successfully. Could it be?
> Thank you very much
> Camilo Rada


Dra. Maria Eugenia Gomez
Investigadora Asistente CONICET en

Grupo de Geodesia Espacial y Astrometría
Dpto. de Astrometría
Facultad de Ciencias Astronómicas y Geofísicas
Universidad Nacional de La Plata

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