UmTRX preselector frontend updae

Alexander Chemeris alexander.chemeris at gmail.com
Fri Aug 24 03:31:50 UTC 2012


Andrey,

Could you remind me what the IF after the preselector?

A comment from Harald from IRC: I hope the IF is not above 380 MHz,
because 380...400 MHz is the European emergency services band (strong
tetra BTS, ...)

On Thu, Aug 23, 2012 at 11:28 PM, Alexander Chemeris
<alexander.chemeris at gmail.com> wrote:
> Hi all,
>
> Here is an update about a preselector frontend board on which
> we're working right now. Attached is an updated schematics of the
> board and 3D view of the board itself and the proposed way of mounting
> it to the main board.
>
> The github repository still contain an older revision of the
> schematics - I will update it a bit later when I get full project
> files from Andrey Sviyazov.
> https://github.com/chemeris/umtrx-schematics/tree/master/umtrx-v2-rxsel
>
> We would appreciate all constructive comments about the board design -
> from both RF and mechanical points of view.
>
> --
> Regards,
> Alexander Chemeris.
> CEO, Fairwaves LLC / ООО УмРадио
> http://fairwaves.ru



-- 
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru




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