UmTRX hardware development plan

Andrey Sviyazov andreysviyaz at
Thu Mar 22 14:54:29 UTC 2012

Hi all.

Before plans I need to discuss conceptual questions about UmTRX new PCB
1) PCB size will be 99.5x149.5mm to use popular 100 mm eurocard housings.
Is it Ok?
2) I can't find RJ-45 gigabit module with industrial temperature range
(-40C..+75C). Either use 0-70C agree or help required.
3) How important to keep OCXO and  TCXO together? May be TCXO will be
4) How important to keep 30 pin debug connector? May be 10 pins will be
5) Can I place some IC's at bottom of PCB? DC/DC for example, are there

Best regards,
Andrey Sviyazov.

19 марта 2012 г. 12:58 пользователь Alexander Chemeris <
alexander.chemeris at> написал:

> Andrey Sviyazov, I think this question is mostly for you.
> Could you please outline the development plan for the UmTRX hardware
> (with all associated things, like RF board design)? What are critical
> dependencies? E.g. when we should decide on the casing?
> My feeling is that we've lost the track and focus on things which are
> important, but not at this stage.
> --
> Regards,
> Alexander Chemeris.
> CEO, Fairwaves LLC / ООО УмРадио
> _______________________________________________
> Gsm-internal mailing list
> Gsm-internal at
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