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
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