Re: [Discuss-gnuradio] Sample rate nomenclature

[Matt Ettus]

Chris Stankevitz wrote:
> Q1: When using USRP source_c (complex) with decimation == 8, am I
> getting 4 million complex samples per second?  64Mhz / 8 = 8MHz floats
> = 4MHz complex

No. 

64 MS/s complex samples / 8 = 8 MS/s complex

>
> Q2: If I saved that data to a file and shared it with people, would I
> advertise it as "Complex data, 4 million samples per second"?

Call it 8 MS/s complex.

>
> Q3: If someone read that in using file_source(gr.sizeof_gr_complex,
> "file.in") and wanted to perform an FFT, what would he specify as the
> sample rate to the fft_sink_c(sample_rate=x)?  My guess is
> sample_rate=4e6.

8e6.

Matt