Can i use 2 channel of USRP at the same time to receive a signal?

[electronicus]

Hi everyone,

i want to do an implementation of time difference of arrival estimation between two receivers (antenna). I have an USRP  kit, daughterboards and two antennas. There is only one source signal ( it is transmitted in anywhere it doesnt matter).

Can i use two channel of USRP at the same time to receive  a signal ?

I need the original source signal and time-shifted version of this signal. 

Many thanks for your help.

Sincerely yours,

Uysal.

[AirFrantz · Accepted solution]

Hello,

I found this forum post which may be helpful to you.  It looks like you can't receive from the two antennae in the way that you describe.  I think this would require a two USRP setup.

[ErikL · Accepted solution]

You need two devices. Each USRP 292x device has 1 Rx channel. If you want to use a USRP-294x, those have two channels and that will also work. Keep in mind that tx/Rx uses a switch to change between transmit and receive. The rx2 port uses the same Rx signal chain but allows you to receive while transmitting in the tx port. This allows for Tdd or fdd applications. ( but it does not mean there are two Rx signal paths.)

[electronicus]

Thank you very much for your helpful answers.