[USRP-users] Automatic Gain Control

2019-11-21 Thread Sergio Parreño Gómez via USRP-users
Hi all, We have a X310 SDR with release version 3.14.1.1 of UHD. We are obtaining IQ samples from 4 channels. My question is, X310 includes Automatic Gain Control in samples depending on signal power? I say that because in the datasheet I couldn't find any information about that but I observed

Re: [USRP-users] E312 - Migrating OOT Modules to the USRP

2019-11-21 Thread EJ Kreinar via USRP-users
Okay, great... You might want to try increasing the log level. Export UHD_LOG_CONSOLE_LEVEL=trace or debug and try to make sure the correct xml file is getting applied to the block correctly. There's also something like a "--tree" parameter in the uhd_usrp_probe so try running the probe with the

Re: [USRP-users] E312 - Migrating OOT Modules to the USRP

2019-11-21 Thread Jonathan Lockhart via USRP-users
Also, when I compiled from the OOT directory for ARM, I used this command, which I pieced together from the RFNoC build guide, and the release-4 guide for cross-compiling gr-ettus. cmake -DCMAKE_TOOLCHAIN_FILE=~/rfnoc/src/gnuradio/cmake/Toolchains/oe-sdk_cross.cmake -DCMAKE_INSTALL_PREFIX=/usr

Re: [USRP-users] E312 - Migrating OOT Modules to the USRP

2019-11-21 Thread Jonathan Lockhart via USRP-users
Greetings EJ, So, from the tutorial, they have you edit the gain.xml file, and this is what I have for it. gain gain B7DD64941A952AAC Gain 128 gain double 1.0 GE($gain, 0.0) AND LE($gain, 32767.0) Invalid

Re: [USRP-users] IQ-sample with a magnitude larger than 1.0

2019-11-21 Thread Brian Padalino via USRP-users
On Thu, Nov 21, 2019 at 2:49 PM Lindstedt, Ralf via USRP-users < usrp-users@lists.ettus.com> wrote: > We are transmitting samples in bursts of 15360 samples(1ms @ > 15.36Msamples/s). When the magnitudes of the transmitted samples are mostly > larger than 1.0, the received signal, especially the

[USRP-users] IQ-sample with a magnitude larger than 1.0

2019-11-21 Thread Lindstedt, Ralf via USRP-users
We are transmitting samples in bursts of 15360 samples(1ms @ 15.36Msamples/s). When the magnitudes of the transmitted samples are mostly larger than 1.0, the received signal, especially the beginning is distorted. My assumptions is that this distortion happens on the transmitter side. Is this

[USRP-users] X300 underflows with tx_rate 100Msps

2019-11-21 Thread voonna santosh via USRP-users
Hi Michael,     I am experiencing lots of underflows when I use benchmark_rate example app. Following is the configuration:      Host processor    : Intel® Xeon® Processor D-1500 System on Chip (SoC) Host OS: Centos 7 UHD: release_003_010_001_000 SDR HW: X300 with UBX-160 (Calibration done as

Re: [USRP-users] E310 RFNoC image

2019-11-21 Thread Skorstad , Jørn via USRP-users
I have successfully built an RFNoC image with a DDC, Window and FFT block using the recipe mentioned. Also I have been able to connect the blocks using the UHD library in a C++ program, and I am receiving FFT output to my program. However, I am still only able to achieve an FFT size of max. 512