[USRP-users] type of data in USRP N210

Marcus D. Leech mleech at ripnet.com
Sat Nov 4 12:32:50 EDT 2017

On 11/04/2017 12:26 PM, Ivan Zahartchuk wrote:
> I want to generate about 1000 sines in the 50 MHz band. But I am faced 
> with a situation where USRP does not have output power. I generate an 
> array of zeros and set the non-zero values ​​at the right frequencies. 
> I do the reverse fft and send it to USRP.
So, like OFDM?

The maximum output power for daughtercards that are compatible with N210 
is about +20dBm.  You haven't mentioned which daughtercard you're using.

So, if you're operating at 50MHz bandwidth, that's not a lot of power 
for each of your 1000 spectral bins.  Also, at 50Msps, you can *ONLY* 
use 8-bit samples
   over the wire, since 1GiGe can only support 50e6 x (8+8) bits/second.

> 2017-11-04 18:12 GMT+02:00 Marcus D. Leech via USRP-users 
> <usrp-users at lists.ettus.com <mailto:usrp-users at lists.ettus.com>>:
>     On 11/04/2017 11:05 AM, Ivan Zahartchuk via USRP-users wrote:
>         Hi Marcus
>         Tell me please, what type of data does USRP N210 sign or
>         unsigned? And what type of data is better to transfer to a
>         motherboard for stable generation of polyharmonics
>     Data "over the wire" from the N210 can be either signed 16-bit or
>     signed 8-bit complex values (I and Q).
>     I'm not sure what you mean by the second half of your question,
>     and perhaps you can elucidate further?
>     _______________________________________________
>     USRP-users mailing list
>     USRP-users at lists.ettus.com <mailto:USRP-users at lists.ettus.com>
>     http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>     <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20171104/e0aaa2f3/attachment-0002.html>

More information about the USRP-users mailing list