18 Mar
2013
18 Mar
'13
12:29 p.m.
Hi all.
Here attached pics of UmSELv1 inputs leakage for E-GSM900.
Measured at MIXER inputs, i.e. it is diversity switches isolation and/or
between LNA's (PCB).
As for the DCS, my first quick test shows that isolation is not so good and
around 15dB only.
Best regards,
Andrey Sviyazov.
2013/3/18 Alexander Chemeris <alexander.chemeris(a)gmail.com>
Hi all,
We've received UmSEL units from the manufacturing and working on its
testing and integration right now. Results are as expected so far,
which is a good sign.
Attached are pictures of UmSELs and UmSEL on a UmTRX:
https://lh6.googleusercontent.com/-mdrwUTthuCE/UUa1PXmXqEI/AAAAAAAAFLY/A6ne…
https://lh5.googleusercontent.com/-nC-F9O9NM1U/UUa1j0488SI/AAAAAAAAFLw/rCzv…
LNA gain measurements, made by Andrey Sviyazov are attached here as well.
--
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru