Re: [Discuss-gnuradio] DBSRX Multiple Input

[Matt Ettus]

Matias Torres Risso wrote:
> Hi,
>
> i'm trying to receive the dedicated control channel SACCH (GSM)
> between MS and BTS (MS --> BTS). But to do this task i need also
> listen the control channel between the BTS and MS. My question is if i
> can receive this two signals (diferent spectrum) at the same time with
> my board (USRP + DBSRX) or maybe i need other daughterboard to manage
> this signals.
>
> Other solution that i was thinking is to listen the BTS->MS control
> channel to know the frame number (synchronize) and after that listen
> the MS->BTS SACCH.
>
> I'm using GNUradio 3.2, GSSM project and GSMSP project.


If the two channels are close enough to be within the DBSRX passband, 
you could receive both.  Otherwise, you'd need two DBSRX boards.

Matt