Ok, first of all congratulation for this project...
Ok, I understood that it wouldn´t work as USRP. But would it allow you to tune (or listen - sory don´t know the tecnical term in english) an especific ARFCN and time slot ?
Hernani
Hi Harald
Thanks for clarifying this confusion. I bought a motorola C123 on ebay with RS232 data cable. When I arrive I'll try this fantastic software. Thank you very much for your work, this world needs more people like you
On Sat, 6 Nov 2010 08:32:31 +0100, Harald Welte <laforge at gnumonks.org https://lists.osmocom.org/mailman/listinfo/baseband-devel> wrote:
- Hi Oscar,
*>>* *>*> On Sat, Nov 06, 2010 at 03:02:37AM +0100, Oscar Soriano Riera wrote: *>>* *>>*> Its posible use *>>*> OsmocomBB on C123 for do task as a USRP ? or similar scanner ? *>>* *>*> No, I think you have some conceptual misunderstanding about radio *>*> technology in general. *>>* *>*> In your subject you ask if OsmocomBB can work as USRP: *>*> This is wrong, as OsmocomBB is a protocol stack and radio driver, and *>*> the USRP *>*> is hardware. How can some software work as hardware? *>>* *>*> In the body of your mail you ask if the C123 can act as USRP: *>*> No. The USRP is a wide-band software defined radio, and the *>*> Calypso/Iota/Rita *>*> design implements a more traditional narrow-band zero-if transceiver *>*> with a DSP *>*> in the baseband. *>>* *>*> Nevertheless, you can use both hardware design to receive and *>*> transmit GSM *>*> signals. But this is very far from what you ask by "one device *>*> working like *>*> the other" *
2010/11/18 Hernani hrnlacerda@gmail.com:
Ok, first of all congratulation for this project...
Ok, I understood that it wouldn´t work as USRP. But would it allow you to tune (or listen - sory don´t know the tecnical term in english) an especific ARFCN and time slot ?
Yes, you can set the frequency in the downlink range (the ARFCN) and then synchronize your timing generator to the FB (Frequency correction burst) which is sent in every frame in timeslot 0. After that you can receive bursts sent in other timeslots.
Br, Maciej Grela
baseband-devel@lists.osmocom.org