Re: [Discuss-gnuradio] 25 MS/s at 16 bits I/Q vs. gr.sizeof_gr_complex

[Daniel Bartel]

Hello Alexander,

in fact my question was only a theoretical one, because I read in the 
mailinglist about the ethernet connection and that 2 x 16Bit x 25MS/s = 
800Mbit/s are used. 
Concerning my hardware setup I've to look tomorrow, because it's not actually 
my pc.

Am 15.05.2011 um 16:07 schrieb Marcus D. Leech:
> UHD converts the incoming samples to complex float, scaled into {-1.0,1.0}.
Does this mean, that there is a loss in accuracy, because a 32 bit data type 
(one pair of gr_complex) is converted to a 16 bit data type (float)?

Best regards,
Daniel

Am 16.05.2011 um 16:24 schrieb Alexander Chemeris:
> Daniel,
> 
> What hardware setup do  you use to achieve 25MS/s? I wasn't able to
> get stable connection with more then 16MS/s, and even at 16MS/s I had
> drops.
> 
> On Sun, May 15, 2011 at 17:04, Daniel Bartel <address@hidden> wrote:
>> Hello,
>> 
>> I was wondering about a little conflict concerning the sizes of the data 
>> types in GNU Radio.
>> 
>> The UHD driver sends 16 bits I, 16 bits Q samples over the ethernet 
>> interface at 25 MS/s and the return value of "gr.sizeof_gr_complex" is 8 
>> bytes (64 bits).
>> How does this actually work?
>> I have looked for some documentation of UHD, but I wasn't were lucky.
>> 
>> Best regards,
>> Daniel
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> address@hidden
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>> 
> 
> 
> 
> -- 
> Regards,
> Alexander Chemeris.