[Discuss-gnuradio] Implementation of TDMA scheme on GNU radio using USRP

2017-10-17 Thread Hafiz Hashim Imtiaz
What is the procedure of implementing TDMA scheme on GNU radio using USRP? I want to implement TDMA scheme using two SDR as a transmitter and the third one as a receiver. The requirement is that first transmitter sends some data to the receiver for first 10 seconds and then after a delay of two sec

[Discuss-gnuradio] Demodulation of Intermittent QAM Signal

2017-10-17 Thread Ernest Fardin
Hi, I have a simple QAM16 loopback (Gray code, diff encoding, 4 sps) working as follows: QAM Mod ---> Throttle ---> QAM Demod This works fine if I have a constant signal level from the Tx. However, if I add a variable gain between the Tx and Rx and drop the Tx level to zero, then restore the Tx

Re: [Discuss-gnuradio] Setting USRP's AGC Through GNU Radio's USRP Source

2017-10-17 Thread Julian Arnold
Hey, I created a test branch for the AGC a few years ago. It should still work. You can find it here: https://github.com/jarn0ld/gnuradio/tree/jarnold/b2xx_agc?files=1 Cheers, Julian Julian Arnold, M.Sc Institute for Networked Systems RWTH-Aachen University Kackertstrasse 9 52072 Aachen German

Re: [Discuss-gnuradio] Setting USRP's AGC Through GNU Radio's USRP Source

2017-10-17 Thread Martin Braun
On 10/17/2017 01:16 AM, Gilad Beeri (ApolloShield) wrote: > Hi, > I'm not sure whether this question should be posted in this mailing list > or in usrp-users. > > The USRP Source has a method called get_device() which returns an > internal pointer to the multi_usrp. The internal USRP object has a

Re: [Discuss-gnuradio] Integrate Mac in CI

2017-10-17 Thread Andrej Rode
Hi, > I’ve had the idea on extending our CI with a Mac installation. Many problems > remain undetected for a long time when using GNU Radio on a Mac, since we are > not many out there :) . Andrej, do you know if this is possible/how to do > this? I would gladly support you with this or take ov

[Discuss-gnuradio] Integrate Mac in CI

2017-10-17 Thread Sebastian Müller
Hi list! I’ve had the idea on extending our CI with a Mac installation. Many problems remain undetected for a long time when using GNU Radio on a Mac, since we are not many out there :) . Andrej, do you know if this is possible/how to do this? I would gladly support you with this or take over t

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

2017-10-17 Thread Marcus Müller
Hi Rensi, ah, your Stackoverflow Question[1] could really use that link! That module was last touched 9 years ago; pretty certainly dead[0]. It simply won't work with any GNU Radio you'll find these days. GNU Radio, and its whole ecosystem, moved away from autoconf/automake a couple of years

[Discuss-gnuradio] Setting USRP's AGC Through GNU Radio's USRP Source

2017-10-17 Thread Gilad Beeri (ApolloShield)
Hi, I'm not sure whether this question should be posted in this mailing list or in usrp-users. The USRP Source has a method called get_device() which returns an internal pointer to the multi_usrp. The internal USRP object has a method of set_rx_agc(). How can I access it through Python? Assuming

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

2017-10-17 Thread Andrej Rode
Hi, > 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 se

Re: [Discuss-gnuradio] Buffer: Change the oldest with the newest

2017-10-17 Thread Andrej Rode
Hi, > I have a GRC in which I am turning USRP stream to vectors of 1024 length. > Then I have a DSP block (Block 1) that uses these blocks and gives an > output of length 1024. > > * Then, I want to accumulate 10 of these 1024 length blocks. > * After 10 of these blocks accumulated, I will give

[Discuss-gnuradio] Buffer: Change the oldest with the newest

2017-10-17 Thread Ali
Hi to all, I have a GRC in which I am turning USRP stream to vectors of 1024 length. Then I have a DSP block (Block 1) that uses these blocks and gives an output of length 1024. * Then, I want to accumulate 10 of these 1024 length blocks. * After 10 of these blocks accumulated, I will give these