On 06/18/2018 09:46 PM, Ayaz Mahmud wrote:

Hi,

Thanks for suggestion.

I have taken the rx_ofdm.grc (as the receiver) & tx_ofdm.grc as transmitter in the /OFDM/example/.

In this case, if I choose number of channel = 2 at RX USRP, then a new output port is turned on, which must be connected to the next block (snap attached for better understanding). But the next block is already connected to the Ch0 of USRP, so an error is shown.

What will be the workaround in this situation?

Thanks you,

Ayaz

*From: *Marcus D. Leech via USRP-users <mailto:usrp-users@lists.ettus.com>
*Sent: *Monday, June 18, 2018 6:00 PM
*To: *usrp-users@lists.ettus.com <mailto:usrp-users@lists.ettus.com>
*Subject: *Re: [USRP-users] Configuration for 2nd RX2 antenna failed in B210

On 06/18/2018 07:13 PM, Ayaz Mahmud via USRP-users wrote:

    Hi,

    My platform is B210. I am trying to setup 1 x TX (1^st USRP) and 2
    x RX (2^nd USRP).

    I am able to transfer a file using OFDM from one USRP to other
    with single TX-RX antenna (2.421 GHz). But I am unable to
    configure the 2 x RX antenna.

    *_Configured at Receiver USRP (Source):_*

    Mb0: Subdev spec àA:A A:B

    Ch0 antenna àRX2

    With this setup I cannot see any LED on the 2^nd RX2 port. Can you
    point out any mistake or suggestion for troubleshoot?

    Thanks,

    Ayaz

Yes, specify RX2 for the 2nd channel in your setup.

Ok, well, now I don't know what it is you're trying to do. You want to receive on two antennae, but you don't want two channels--does that sum it
  up?   In which case, the answer is you can't do that.


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