LimeSDR-USB experience with New Splits Solved!

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Vadim Yanitskiy axilirator at gmail.com
Fri Sep 14 09:29:10 UTC 2018


Hi Mychaela,

> If Motorola phones running their original firmware [...]
> don't work with Osmocom networks [...] it is a very grave
> problem from the perspective of Freedom [...]

Actually, they do. You can even find some videos on YouTube,
where an original Motorola phone runing FreeCalypso firmware
was tested with Osmocom based network (most likely, CalypsoBTS).

The problem is that the author of this topic is using LimeSDR,
that is still not 100% reliable as a PHY for OsmoTRX, and not
reliable itself, because even a regular firmware update can
brick the board... Moreover, AFAIK the author is not using
any stable clock source, such as GPSDO.

> Sysmocom has two of my FreeCalypso development boards [...]
> The board you've got set up there is the one that did get
> properly calibrated before being sold to Sysmocom.

Maybe I am missing something, but how is this related to
the original topic?

> Do you still have that firmware image in the flash, or have
> you erased it?  Where is the RF from that board connected to -
> does it go to a sysmoBTS unit?  Would it be possible for someone
> from Sysmocom [...] to test and see if the FCDEV3B can successfully
> connect to Osmocom network using the official FreeCalypso
> firmware on the board, driven via AT commands?

I think you could ask this in context of the mentioned issue.

> If Sysmocom folks are philosophically against doing any
> tests with FreeCalypso firmware [...]

Please don't get me wrong, but I am philosophically against
abusing the mailing list in order to PR your production. This
is not the first time I see some thread mixed with your
advertisements.

There are other commercial companies also using this mailing
list, and let's imagine everybody would constantly PR their
production here? It would just result in a mess. Even
Sysmocom is not abusing that much, at least I don't see
any offers to buy e.g. sysmoBTS when a general question
about some BTS is asked...

With best regards,
Vadim Yanitskiy.



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