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Andrey Sviyazov andrey.sviyazov at fairwaves.ruHi Thomas. Thank you very much for good news. Sylvain and everybody who discussed, thanks a lot. Seems, now I could finalize new revison of the BOM. Best regards, Andrey Sviyazov. 2012/7/30 Thomas Tsou <ttsou at vt.edu> > Hi Andrey, > > Parts arrived yesterday and I made modifications for the 100 kHz loop > filter and tested today. The entire 900 band is below 1.5 / 5 with a > good margin. > > http://filebox.vt.edu/users/ttsou/http/umtrx_945mhz_4.bmp > > The lower part of the 1800 is also below the target value. I was not > successful at 1885 MHz, though further calibration is possible (manual > calibration at each frequency takes a very long time). I will perform > additional tests tomorrow. > > http://filebox.vt.edu/users/ttsou/http/umtrx_1825mhz_4.bmp > http://filebox.vt.edu/users/ttsou/http/umtrx_1825mhz_noise.PNG > > Thomas > > On Wed, Jul 25, 2012 at 9:52 PM, Thomas Tsou <ttsou at vt.edu> wrote: > > On Wed, Jul 25, 2012 at 1:41 PM, Andrey Sviyazov > > <andrey.sviyazov at fairwaves.ru> wrote: > >> Hi Thomas. > >> > >> Digikey part numbers links: > >> C82 = 100pF, C83=1500pF, C84=33pF, R106=2.2k, R109=3.3k, L6=0.022uF. > >> > >> But you'll remove 100pF capasitor from position C45, so you could use > it for > >> C82. > >> BTW, how long time required to delivering from the DigiKey? > > > > Thank you for the links. Parts are ordered. Digikey orders usually > > arrives in 2 days. > > > > Thomas > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/umtrx/attachments/20120730/9261fc8d/attachment.htm>