<div dir="ltr"><div>Hello,</div><div><br></div><div>I get zeros at the beginning at a lower sample rate. I run the following commands and get results shown in the following figures: </div><div><br></div><div>sudo ./rx_samples_to_file --args "addr=192.168.60.2" --duration 10 --rate 1e6 --freq 800e6 --gain 70 --subdev "A:0" --file test3.dat<br></div><div>


        
        <span></span>
        
        


<p style="margin-bottom:0cm;line-height:100%"><br></p><div><div><div><img src="cid:ii_k2vvy58e2" alt="original.png" width="468" height="472"><br></div><div><br></div><div><p style="margin-bottom:0cm;line-height:100%">sudo
./rx_samples_to_file_4ch --args="addr0=192.168.40.2,
second_addr0=192.168.30.2, recv_buff_size=900000000" --rate
100e6 --freq 800e6 --nsamps 10000000</p><p style="margin-bottom:0cm;line-height:100%"><br></p></div><img src="cid:ii_k2vvy5851" alt="modif.png" width="527" height="469"><br></div><div><br></div><div><div><p style="margin-bottom:0cm;line-height:100%">sudo ./rx_samples_to_file_4ch --args="addr0=192.168.40.2, second_addr0=192.168.30.2, recv_buff_size=900000000" --rate 1e6 --freq 800e6 --nsamps 100000</p><p style="margin-bottom:0cm;line-height:100%"><br></p></div><div></div></div><img src="cid:ii_k2vvy57h0" alt="mod2.png" width="475" height="475"><br></div><div><br></div><div>Regards,</div><div><br></div><div>Anabel</div>

</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El lun., 11 nov. 2019 a las 18:24, Nate Temple (<<a href="mailto:nate.temple@ettus.com" target="_blank">nate.temple@ettus.com</a>>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi,<br><br>Do you get the same result if you run the included (compiled/default) version of rx_samples_to_file at a lower sample rate, such as:<br><br>/usr/local/lib/uhd/examples/rx_samples_to_file --args "addr=192.168.60.2" --duration 10 --rate 1e6 --freq 100e6 --gain 10 --subdev "A:0" --file test.sc16 <br><br>What version of UHD are you using?<br><br>Regards,<br>Nate Temple</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Nov 11, 2019 at 9:02 AM Anabel Almodovar <<a href="mailto:anabel.almodovar@gmail.com" target="_blank">anabel.almodovar@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear Nate,<div><br><div>The parameters that I introduce are the following:<span style="font-family:Calibri,sans-serif"> </span><div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-family:Calibri,sans-serif"><br></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>//setup the program
options</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    po::options_description desc("Allowed
options");</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    desc.add_options()</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("help", "help
message")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("args",
po::value<std::string>(&args)->default_value("addr0=192.168.60.2,second_addr0=192.168.50.2,recv_buff_size=900000000"),
"multi uhd device address args")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("file",
po::value<std::string>(&file)->default_value("/home/rs3lab/Escritorio/Grabaciones"),
"name of the file to write binary samples to")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("type",
po::value<std::string>(&type)->default_value("short"),
"sample type: double, float, or short")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("nsamps",
po::value<size_t>(&total_num_samps)->default_value(0), "total
number of samples to receive")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("duration",
po::value<double>(&total_time)->default_value(0), "total
number of seconds to receive")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("time",
po::value<double>(&total_time), "(DEPRECATED) will go away soon!
Use --duration instead")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("spb",
po::value<size_t>(&spb)->default_value(10000), "samples per
buffer")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("rate",
po::value<double>(&rate)->default_value(25e6), "rate of
incoming samples")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("freq",
po::value<double>(&freq)->default_value(800e6), "RF center
frequency in Hz")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("gain",
po::value<double>(&gain)->default_value(80), "gain for the RF
chain")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("ant",
po::value<std::string>(&ant), "antenna selection")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("subdev",
po::value<std::string>(&subdev)->default_value("A:0 A:1 B:0
B:1"), "subdevice specification")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("channel_list",
po::value<std::string>(&channel_list)->default_value("0,1,2,3"),
"which channel to use")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("bw",
po::value<double>(&bw), "analog frontend filter bandwidth in
Hz")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("ref",
po::value<std::string>(&ref)->default_value("external"),
"reference source (internal, external, mimo)")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("wirefmt",
po::value<std::string>(&wirefmt)->default_value("sc16"),
"wire format (sc8, sc16 or s16)")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("setup", po::value<double>(&setup_time)->default_value(1.0),
"seconds of setup time")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("progress",
"periodically display short-term bandwidth")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("stats", "show average
bandwidth on exit")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("sizemap", "track
packet size and display breakdown on exit")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("null", "run without
writing to file")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("continue", "don't
abort on a bad packet")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("skip-lo", "skip
checking LO lock status")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        ("int-n", "tune USRP
with integer-N tuning")</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><b><i><span lang="EN-US">    </span>;</i></b></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"> </p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif">Then I initialize a vector so I can save the data of the 4 channels: </p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><br></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><b><i>    uhd::rx_metadata_t md;</i></b></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>//    std::vector<samp_type>
buff(samps_per_buff);</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>//    std::ofstream outfile;</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>//**************************************************************************************</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>//allocate buffers to
receive with samples (one buffer per channel)</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    const size_t samps_per_buff =
rx_stream->get_max_num_samps();</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>   
std::vector<std::vector<std::complex<float> > > buffs(</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>        usrp->get_rx_num_channels(),
std::vector<std::complex<float> >(samps_per_buff)</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    );</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i> </i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    //create a vector of pointers to point to
each of the channel buffers</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    std::vector<std::complex<float>
*> buff_ptrs;</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    for (size_t i = 0; i < buffs.size();
i++) buff_ptrs.push_back(&buffs[i].front());</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>//***********************************************************************************</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i> </i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>  //  if
(not null)</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>  //     
outfile.open(file.c_str(), std::ofstream::binary);</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    bool overflow_message = true;</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i> </i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    //setup streaming</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    uhd::stream_cmd_t
stream_cmd((num_requested_samples == 0)?</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>       
uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS:</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>       
uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    );</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    stream_cmd.num_samps =
size_t(num_requested_samples);</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    stream_cmd.stream_now = false;</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    //stream_cmd.time_spec =
uhd::time_spec_t();</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    stream_cmd.time_spec = usrp->get_time_last_pps(0)+1.1;</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><b><i>    rx_stream->issue_stream_cmd(stream_cmd);</i></b></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"> </span></p>

<div>In addition, once a burst is adquired, the data is save in a file:</div>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11pt"> </span><br></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>        num_total_samps += num_rx_samps;</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b> </b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>for (size_t i=0; i
< num_rx_channels; i++)</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>{              </b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>                std::ostringstream oss;</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>                oss << file <<
"/Grabaciones_CH_"<< i 
<< buffer << ".dat";</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>                std::ofstream oss1;</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b> </b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>                oss1.open(oss.str().c_str(),std::ofstream::app|std::ofstream::binary);</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>  oss1.write((const char*)&buff_ptrs, samps_per_buff)*sizeof(std::complex<short>));
</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>               oss1.close();</b></i></span></p>

<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><i><b>}</b></i></span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><br></span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Thank you in advanced.</span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><br></span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Regards,</span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif">Anabel</p></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El lun., 11 nov. 2019 a las 16:55, Nate Temple (<<a href="mailto:nate.temple@ettus.com" target="_blank">nate.temple@ettus.com</a>>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi Anabel,<br><br>What parameters are you using with the rx_samples_to_file example?<br><br>Regards,<br>Nate Temple</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Nov 11, 2019 at 3:02 AM Anabel Almodovar via USRP-users <<a href="mailto:usrp-users@lists.ettus.com" target="_blank">usrp-users@lists.ettus.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><span lang="en"><span title="">Hello,</span></span></div><div><span lang="en"><span title=""><br></span></span></div><div><span lang="en"><span title="">I am trying to make a continuous acquisition with an ettus x310 card whose daughter boards are TwinRx.</span> <span title="">I have used as a base the example  "rx_samples_to_file.cpp" and I have modified it to be able to acquire continuously with the 4 available channels.</span> <span title="">However, this gives me an error and saves a lot of zeros even though I don't get the overflow error.</span> <span title="">By testing the unmodified example I also get those zeros.</span> <br></span></div><div><span lang="en"><span title=""><br></span></span></div><div><span lang="en"><span title="">Could someone tell me why this happens?</span> <span title="">How can I solve this error and save the acquisition continuously on disk with the 4 channels?</span></span></div><div><span lang="en"><span title=""><br></span></span></div><div><span lang="en"><span title="">Thank you in advanced.</span></span></div><div><span lang="en"><span title=""><br></span></span></div><div><span lang="en"><span title="">Regards,</span></span></div><div><span lang="en"><span title="">Anabel<br></span></span></div></div>
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