[Discuss-gnuradio] B200 Overflow

Dear sirI am using B200 SDR to run the program usrp_spectrum_sense.py with a sampling frequency of 16e6.I think I am using a fairly low sampling rate. Still I am getting some ''. Could someone tell me the possible reasons for the same? And how I can avoid the same? Thanking youRensi Sam _

[Discuss-gnuradio] Error while running simulations

I am trying to run the file sim.grc in the gr-IEEE802.11-master/simulations/awgn/ folder(available in github), an error is generated as shown: Using Volk machine: avx2_64_mmx_orc MAPPER: encoding: 0 set_min_output_buffer on block 9 to 397056 set_min_output_buffer on block 11 to 397056 set_min_out

[Discuss-gnuradio] Modifying the Python code

I have created a simple grc with source->throttle ->FFT sink/File sink the corresponding python file is:- #!/usr/bin/env python2 # -*- coding: utf-8 -*- ## # GNU Radio Python Flow Graph # Title: Rsm 01 02 2019 # Generated: Fri Feb 1 16:54:42 20

[Discuss-gnuradio] unable to read a WAV file recorded using GNU radio block

I amtrying to read a FM signal recorded as WAV file using GNU radioCompanion, using python. I am attaching the .grc file used. Ican clearly hear the recorded signal but reading the data gives anull ([] ) value. Thepython code importsoundfi

[Discuss-gnuradio] Spectrum sensing

Dear all I am working on B200 USRP for sensing the ISM band spectrum. My parameters is 2.4 G - 2.5G, FFT size 1024 (6.4MHz), sampling rate 40e6, taking 832 bins of 1024 from 96th bin to 928th bin, totally 19 subbands, each of 5.2  of 6.4 MHz, and frequency between two bin values is 6250Hz. When

[Discuss-gnuradio] Windows Crashing while Installing and Running GNU Radio

Dear all I have installed Windows and then Ubuntu 16.04, as second OS. (Windows booting fine at this point) Then I installed GNU radio and UHD drivers.(Windows booting fine at this point) Then I connected my USRP and run an FM receiver program. After this when I tried to login to Windows, Windows

[Discuss-gnuradio] ABI compatability mismatch

I had newly installed gnuradio and its dependencies. I was careful as I was aware of this error. When uhd was installed , I had selected v3.12.0and the gnuradio version was v13.4.0 (one of the latest but stable ones as of my understanding) When I connected B200 and run my programme, it showed th

Re: [Discuss-gnuradio] runtime error while running flowgraph

 I am trying to implement this discussion:[Discuss-gnuradio] Change frequency in USRPsource automatically(https://lists.gnu.org/archive/html/discuss-gnuradio/2016-03/msg00402.html). My objective is to create a block which changes the frequency automatically in steps of 2e6, starting from 2.37e9

[Discuss-gnuradio] Changing frequency automatically

 I am trying to implement this discussion:[Discuss-gnuradio] Change frequency in USRPsource automatically(https://lists.gnu.org/archive/html/discuss-gnuradio/2016-03/msg00402.html). My objective is to create a block which changes the frequency automatically in steps of 2e6, starting from 2.37e9

[Discuss-gnuradio] No module named RPCConnectionThrift

when Iam working on python simple_copy_controller.py 127.0.0.1 true, itshows the following error:- root@pglab1-HCL-Desktop:/home/pglab1/gnuradio/gr-blocks/examples/ctrlport#python simple_copy_controller.py 127.0.0.1 9090 true Traceback(most recent call last): File"simple_copy_controller.py

[Discuss-gnuradio] runtime error while running flowgraph

Icreated a block using gr_modtool add -l python -tsync command, whereI tried to implement this discussion:[Discuss-gnuradio] Change frequency in USRPsource automatically(https://lists.gnu.org/archive/html/discuss-gnuradio/2016-03/msg00402.html) And thenused this block in a flowgraph connecting

[Discuss-gnuradio] Interpreting the recieved packet

Hi all I am using a SDR B200 to receive packets from a TelsoB. I am using a message debug box after the PHY layer. The output I am getting is : 41 98 ad cd ab ff ff 40 2c 81 00 2c 40 32 37 38 0010: 37 00 11 e5 1f 65 4e I am not able to interpret the fields according to 802.15.4 standard. Can

[Discuss-gnuradio] reg:- sampling rate in GRC

Hi I have a doubt regarding the sampling rate used in GNU radio. Is there any limit for the sampling rate (minimum/maximum) other than the Nyquist Criteria which should be used in GNU radio companion? Is there any difference  to the sampling rate (or limit to it) when we connect a hardware ? Than

[Discuss-gnuradio] reg "A GNU Radio-based IEEE 802.15. 4 Testbed " GRC

Hi all I was trying to recreate the GNU radio Companion environment in the paper  "A GNU Radio-based IEEE 802.15. 4 Testbed ".I have TelosB nodes, but only one USRP B200 SDR. While I am running the corresponding GRC, when I put a WX FFT sink block at the receiver, I am able to observe some signa

[Discuss-gnuradio] Package gnuradio-core was not found

Hi all I am trying to run configure command for gnuradio-802.15.4-demodulation file downloaded from github. https://github.com/septikus/gnuradio-802.15.4-demodulation It is showing these error. checking for gnuradio-core >= 2... Package gnuradio-core was not found in the pkg-config search path.

[Discuss-gnuradio] GSM receiver

I am working with the airprobe_uhd.grc file in the page https://sourceforge.isae.fr/projects/ralf/wiki/GSM_receiver_with_gr-gsm_and_Wireshark. I am running the gnuradio-companion in Ubuntu 16.04 and my source is USRP B200 SDR.When I am running the grc file, an error occurs. ImportError: lib