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@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