[Discuss-gnuradio] Question about UHD output data type.

[周亮]

Hi,

I met a strange problem about UHD output data. I write the sampler program according to rx_timed_samples.cpp and use int 16 bits as io type as in command:

size_t num_rx_samps = dev->recv(
                  buff, sizeof(buff),
                  md, uhd::io_type_t::COMPLEX_INT16,
                  uhd::device::RECV_MODE_ONE_PACKET
                  );

Then I checked the output data and found that samples seems to be the int 8 bit data since the minimum step is 0.0078125, which is equal to 2 power of -7. What could be the reason for this?

Thank you for your help!

Liang