Re: [Discuss-gnuradio] USRP2 LFTX maximum real baseband bandwidth?

Per Zetterberg wrote:
> Quoting TANGUY Philippe <Philippe.Tanguy@insa-rennes.fr>:
>
>> Ulrika Uppman wrote:
>>> Hi,
>>> I believe the short format isn't implemented for the USRP2 yet, or
>>> has this been done recently?
>>>
>>> /Ulrika
>>>
>>
>> Hi,
>>
>> Indeed, the short format seems to be not implemented for the USRP2
>> yet. However, usrp2_sink_16sc can be used (I tried to send a cosine
>> with short format but with no success) but do not work.
>>
>> If we can used the short format and an interpolation = 2, do you think
>> that the data rate will be 50 MS/s * 16 (short) = 800 Mbits/s before
>> the Digital Up Converter?
>>
>> and
>>
>> Is it possible to have an interpolation = 2 ?
>>
>
> My understanding is that we need 32bits per sample, 16bits I and 16bits Q.
>
> BR/
> Per
>
>

Thanks for the response. Indeed, you are right.

In fact, I was confused between the GNUradio format representation and
the appropriate "on the wire" representation, depending on the current
USRP2 configuration which is apparently 16-bit I & Q. (see in
documentation here:
http://gnuradio.org/doc/doxygen/classusrp2_1_1usrp2.html).

Now, my problem is to know if it is possible to use an interpolation of
2 in order to have a data rate of 50 MS/s to transmit a real baseband
signal with a bandwidth of 25 MHz.

Regards,

Philippe.

_______________________________________________
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio