This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/UmTRX@lists.osmocom.org/.
Alexander Chemeris alexander.chemeris at gmail.comAndrey, 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