Re: [Discuss-gnuradio] 2channel USRP2 with Ext RF frontend

[Matt Ettus]

On 04/22/2010 03:55 AM, Luca Pascale wrote:
> Hi all,
>
> is not clear for me if using a single USRP2 with 2 external RF
> downconverters is possible to obtain the IQ samples from two channels.
>  From the FAQ seems that should be possible using the BasicRX with the 2
> RF front-ends connected to the two BasicRx RF input.
> Can someone help me to clarify this issue ?
>
> Thanks
> Luca

You can use 2 downconverters if they downconvert to an IF, since there 
are 2 ADCs.  If they downconvert to complex baseband (IQ) then you would 
need 4 ADCs and you don't have enough on the USRP2.

Matt