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.
Hi all.
Before plans I need to discuss conceptual questions about UmTRX new PCB release: 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 enough? 4) How important to keep 30 pin debug connector? May be 10 pins will be enough? 5) Can I place some IC's at bottom of PCB? DC/DC for example, are there objections?
Best regards, Andrey Sviyazov.
19 марта 2012 г. 12:58 пользователь Alexander Chemeris < alexander.chemeris@gmail.com> 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 http://fairwaves.ru
Gsm-internal mailing list Gsm-internal@lists.fairwaves.ru http://lists.fairwaves.ru/listinfo/gsm-internal
Hi, Andrey!
2) I can't find RJ-45 gigabit module with industrial temperature range
(-40C..+75C). Either use 0-70C agree or help required.
I found one. Part number code: 7499111440A. It's available herehttp://export.farnell.com/wuerth-elektronik/7499111440a/connector-smd-rj-45/dp/1636393?Ntt=7499111440A . Datasheet included to this e-mail.
Regards, Andrew Karpenkov
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Alexander Chemeris -
Andrew Karpenkov -
Andrey Sviyazov