[USRP-users] USRP B210 and E310

Marcus D. Leech mleech at ripnet.com
Mon Mar 21 13:51:04 EDT 2016


Just changing the subject line on this, to keep it in one thread.

On 03/21/2016 01:47 PM, Marcus D. Leech via USRP-users wrote:
> On 03/21/2016 01:36 PM, Thomas Wagner wrote:
>> Hi Marcus,
>>
>> Thanks for the diagram,    the computer I have with me cannot display 
>> the entire flow graph.  I still have 3.7.3 on my Macbook.   I will 
>> run the example on 3.9.1 on the MacMini when I get home later this 
>> afternoon.   Where is the documentation on the device, subdev, and 
>> antenna specification for the B210 and the E310?   I will also get 
>> the latest SD image for the E310 and put it on a fast SD card.
>>
>> Not sure if I should just run Ubuntu on my Mac,  do you think that 
>> would be better?
>>
>> Regards,
>> Tom
>>
> For device identification, see here:
>
> http://files.ettus.com/manual/page_identification.html#id_identifying_common
>
> For subdev specs:
>
> http://files.ettus.com/manual/page_configuration.html#config_subdevhttp://files.ettus.com/manual/page_configuration.html#config_subdev
>
> And for antenna, it's nearly always "RX2" and "TX/RX" as the choices 
> for antenna.    For TX, you can only use "TX/RX".
>
> Run the OS that you're comfortable with.   Definitely make sure you 
> have recent Gnu Radio and UHD.
>
>
>>
>> 310-387-4929  cell
>>
>>
>>
>> On 3/21/16 10:30 AM, Marcus D. Leech via USRP-users wrote:
>>> On 03/21/2016 11:25 AM, Thomas Wagner via USRP-users wrote:
>>>> I sent this message a few days ago.
>>>>
>>>> I have both a B210 and an E310.  I am using GRC.   I don't 
>>>> understand how to set up the ports with USRP source and sync to use 
>>>> the devices in MIMO mode.   I get single channel (B210) to work 
>>>> using the default ports.   I would like to transmit on one port and 
>>>> receive on two ports both channels I/Q to do phase comparison for 
>>>> radar processing.   I have the latest stable GNUradio and UHD.
>>>> Can anyone please help with this?
>>>>
>>>> Regards,
>>>> Tom
>>>>
>>> Something to understand about B2xx and E3xx, is that the RFFE chip 
>>> precludes any kind of 2x1 or 1x2 MIMO configuration--it's either
>>>   1x1 or 2x2--this is a limitation of the RFFE chip, and "making it 
>>> nice" in the FPGA would consume a lot of space that is usefully occupied
>>>   by other things.
>>>
>>> Attached is an absolutely bare-bones flow-graph showing setup for 
>>> 2x2 MIMO with a B210.
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> USRP-users mailing list
>>> USRP-users at lists.ettus.com
>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>>
>
>
>
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