[Hackrf-dev] Constallation plot

[Vitor Augusto]

It is not necessary from the osmocom source point of view, but, from
lesson 4 at Great Scott Gadgets (http://greatscottgadgets.com/sdr/4/),
if not used, the CPU consumption rises to almost 100%. It opted to
put!

On Fri, Nov 7, 2014 at 9:55 PM, Simon IJskes <simon at ijskes.org> wrote:
> On 07-11-14 02:18, Vitor Augusto wrote:
>>
>> Hi.
>>
>> Please I need help. Could someone tell me why I'm getting a
>> constallation plot this way (link below)?
>>
>> This plot is from Hackrf One at 1.1GHz. Curiously, at 500MHz the
>> constallation is well distributed.
>>
>> http://i.imgur.com/LAMigRt.png
>
>
> Are you sure you want a throttle block in there. The osmocom source will
> already dictate sampling rate
>
> the docs say:
>        N.B. this should only be used in GUI apps where there is no other
> rate limiting block. It is not intended nor effective at precisely
> controlling the rate of samples. That should be controlled by a source or
> sink tied to sample clock. E.g., a USRP or audio card.
>
> Gr. Simon
>
>