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.comBtw, the first power up of UmTRXv2 went fine and boring - no flames, no smoke. Now we're waiting for FPGA bitstream from Andrew Karpenkov to run the functional tests. On Wed, Sep 19, 2012 at 12:58 AM, Alexander Chemeris <alexander.chemeris at gmail.com> wrote: > Hi all, > > Today we've received first units of UmTRXv2 from a fab. The unit is lovely > to look at - find the picture attached. I hope it will show no less great > performance when we turn it on. > > In addition to fixed bugs this version has following major changes. I may > have forgotten something, but these are the most important changes: > * better form factor (10x16cm Eurocard) > * doesn't have RF switches on board (the're moved to a frontend for higher > flexibility) > * newer GPS module (EB-570) > * U.FL connectors by default (to simplify automated mounting) > * optional connector for external front panel (for waterproof casing) > * tantalum capacitors instead everywhere (for longer life) > * wider input power voltage range (8-28VDC) > > We consider this version as pre-production. I.e. it will go into production > if there are no serious bugs. Now our task is to bring up the board and > check for all possible bugs before we go forward. > > PS White squares on the picture is not because we obscure the photo - it's > white thermal pads which the fab placed atop of chips instead of placing > them at the bottom of PCB. > > -- > Regards, > Alexander Chemeris. > CEO, Fairwaves LLC / ООО УмРадио > http://fairwaves.ru > -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru