Re: [Discuss-gnuradio] Units of data saved by filesink

Hi Marcus,

Good to know. So how would you recommend I should convert these values to, say, watts? (I guess perhaps it would be watts squared due to the mag to mag squared block). I assume I would first have to determine what the SDR considers full scale -- do you have any suggestions on how to do that? 

Thank you so much for your time and input on this, I really appreciate it! 

Take care,

Ellie

On Thu, Jul 25, 2019 at 1:11 PM Müller, Marcus (CEL) <mueller@kit.edu> wrote:

Arbitrary counts, relative to what your Device and the attached DSP you
or the device are doing considers full scale.

Best regards,
Marcus

On Thu, 2019-07-25 at 13:09 -0400, Ellie White wrote:
> Hi all,
>
> Hope you are doing well! I have been working on a flowgraph (attached) that will allow me to process and save data samples from an Ettus SDR (which is plugged in to a different computer -- the data is streamed over via a TCP socket). I am using a metadata filesink for this, and am curious to know, what are the units in which the data is saved? I.e., when I open the binary data file using a separate python program (such as the one attached), and plot the data as an averaged spectrum, what will the units on the y-axis be -- some actual physical unit, or an arbitrary counts unit?
>
> Any info that you can provide on this would be much appreciated -- have a great afternoon!
>
> Best,
> Ellie
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