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/tetra@lists.osmocom.org/.
Christian Daniel -- maintech GmbH cd at maintech.de-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Harald, I have no Funcube, but from the design of it I would rather assume, that it is a matter of strong signal immunity. The WBX has a lot of built in analog filters whereas the Funcube has none. If several other carriers are in the vicinity (within several MHz of the targeted signal), all these add to noise in the channel. You might try a filter between antenna and Funcube or try to use an antenna that is only sensitive in a small part of the Tetra band. Do not use one of these DVB-T mini antennas that come with the USB sticks. These are optimized for covering the whole TV band. This includes Tetra but also everyting else :/ Just my .02 - and speculation as well... Best regards, Christian On 25.05.2011 08:57, Harald Welte wrote: > Hi! > > I've borrowed a Funcube Dongle Pro and tried to use it with > osmocom-tetra. I've manually tuned it to a tetra carrier using the > Qt-GUI, and it I can see the carrier very clearly in the spectrum/fft. > However, I'm getting many more bit errors than with a USRP2+WBX board. > Also, I have the feeling that the WBX has a much higher sensitivity, > even with the FCDP input LNA at 30dB maxed out. > > Can anyone confirm these findings? > > I'll do some more investigation and report back here. > > Regards, > Harald - -- - --------------------------------------------------- | maintech # Dipl. Inf (FH) Christian Daniel | | GmbH ### Otto-Hahn-Str. 15 · D-97204 Höchberg | - --------------------------------------------------- | AG Würzburg, HRB 8790 Tax-ID DE242279645 | - --------------------------------------------------- | http://www.maintech.de cd at maintech.de | - --------------------------------------------------- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJN3LcbAAoJEHkgzUIsAWriueMH/3UCVHAdf+qTsVXiWQKkDtan vSOQ4q3nCZJ9kHMpApWVod/yKL/4iPCrzJp1jiuyWrYx7tD88NT8zDweJpywu+w9 S5kixF0OMErVFVrhkCTcdKRrFuyPUJCYh8tHSGaOVk94ikloXXU/7p8MLIoiFbPT TYJI6KojtjXlsNtc3JVTJeVoUx47eoji3moqghwnY1Lhizthn9O8NjoJBS+oSwOn 2BN+PaXAHUf+tG+DzPEolW1OECUO5H7DJMRtPch6NOFNGK+7BQ04YYUzO+8EyNCD Uui8iPlXQjWEtlG1GanrPe1CPi0CduEtdO/D0ZqBJgXkSHzuuyKtQDtUqvu4G/g= =w5/V -----END PGP SIGNATURE-----