Re: [Discuss-gnuradio] query regarding wav file recording through wav file sink block

2019-06-05 Thread CEL
we really need both your Wav writing (we've got that) and Wav reading flow graph to make any qualified statement. Again, the file name in your file source is suspicious. Best regards, Marcus On Wed, 2019-06-05 at 10:54 +0530, Maitry Raval wrote: > Hello, > > Please check the flowgraph, as

Re: [Discuss-gnuradio] Wifi receiver - where do I dump the WiFi PHY Hier out?

2019-06-05 Thread Eamon Heaney
nvm, solved. The appropriate placeholder block is a null sink. On Wed, Jun 5, 2019 at 6:08 PM Eamon Heaney wrote: > Hi y'all, > > I'm trying to get a wifi transceiver working with HackRF and gnuradio, > specifically using the tools from this github repo: >

[Discuss-gnuradio] Getting a Runtime Error: gr::tuntap_pdu::make: tun_alloc failed

2019-06-05 Thread Eamon Heaney
Trying to run a modified version of the wifi transceiver from this repo: https://github.com/bastibl/gr-ieee802-11 Swapped out the USRP source for Osmocom (HackRF), and the USRP sink for a null sink. When I try to run it, I get this error: Traceback (most recent call last): File

[Discuss-gnuradio] cannot find block tree panel in grc

2019-06-05 Thread Ziang Gao
Hello, Recently I update the system using apt-get update and apt-get upgrade, then I noticed the block tree panel in my GRC was completely disappeared. When I click the search button or use view setting, it never showed up. Remove GNUradio and reinstall did not fix this problem at all. And when I

[Discuss-gnuradio] Wifi receiver - where do I dump the WiFi PHY Hier out?

2019-06-05 Thread Eamon Heaney
Hi y'all, I'm trying to get a wifi transceiver working with HackRF and gnuradio, specifically using the tools from this github repo: https://github.com/bastibl/gr-ieee802-11 It comes with an example transceiver .grc, but made with USRP instead of osmocom. I changed the source to osmocom

[Discuss-gnuradio] Determining distance from OFDM signals

2019-06-05 Thread Andrew Wolfram
Hi, I'm trying to alter the file ofdm_txrx.py ( https://github.com/gnuradio/gnuradio/blob/master/gr-digital/python/digital/ofdm_txrx.py) to get phase information from the carrier data so I can calculate an approximate distance between two USRP devices. Ideally I want to grab data from one of the

[Discuss-gnuradio] Filter error

2019-06-05 Thread Sneha vasan
Hi everyone, Can anybody guide me on this???.. I am using x310 with sampling rate of 1MHz. Traceback (most recent call last): File "/home/sneha/My_waveform/past work/transmit.py", line 414, in main() File "/home/sneha/My_waveform/past work/transmit.py", line 402, in main tb =

Re: [Discuss-gnuradio] Filter error

2019-06-05 Thread Michael Dickens
Hi Sneha - You need to take a look at the command being issued (from the debugging traceback) in the file "/home/sneha/My_waveform/past work/transmit.py", line 250. The code is clearly is not setting the filter initialization parameters correctly! Without seeing your code I think nobody here

Re: [Discuss-gnuradio] [EXT] Filter error

2019-06-05 Thread Chesir, Aaron M.
Sneha, You did not present the configuration page of the UHD USRP block. In any case, whenever a complaint refers to a frequency not being at or below half the sample rate, it means that the system thinks that you are attempting to either transmit or receive a signal at a frequency that is not