The DBSRX does say it can handle a 60mhz wide band, but I don't know how accurate it would be.. And yeah, the amount of data coming back would be insane..
Talking hypothetically here... there's no way you could decode every single one of those data streams on the fly, at least, not without investing some serious cash. Surely it would be better (and probably more fun) to get around the channel hopping problem, rather than just throwing resources at something which is probably overkill for what you're trying to do? I think THC came close, but had some teething issues.. On Fri, Jul 23, 2010 at 1:44 PM, <[email protected]> wrote: > > a WBX 50 MHz to 2.2 GHz Transceiver is sufficient enough for an USRP2 > > to read the full GSM spectrum ? > > You can read anywhere _in_ the GSM spectrum. > > > But get it all at once : No way ! > > To dump the full GSM spectrum, you'd need to bring back : > > GSM900: 2 * 35 MHz [ 880.0–>915 & 925.0–>960 ] (or 1 * 80 MHz) > GSM1800: 2 * 75 MHz [ 1710–>1785 & 1805–>1880 ] (or 1 * 170 MHz) > > That's at the minimum 230 MHz of bandwidth split in 4 bands ... > > The USRP2 is generally accepted as capable of getting 25 MHz of RF > bandwidth at once, so you're gonna need something like 10 of them if you > want all GSM at once ... > > (And you're gonna need a hell of a PC as well ... with like 10 gigabits > ports and a bunch of cores to decode all that) > > > Sylvain > _______________________________________________ > A51 mailing list > [email protected] > http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51 > > -- Cal Leeming Operational Security & Support Team *Out of Hours: *+44 (07534) 971120 | *Support Tickets: * [email protected] *Fax: *+44 (02476) 578987 | *Email: *[email protected] © 2010 Simplicity Media Ltd. All rights reserved. Registered company number 7143564
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