Re: [Discuss-gnuradio] benchmark_tx(rx).py throughput as modulation

Hi, > I think it is up to bit rate, but I don't know exactly what it is. The number of bit per second you're going to be transmitting/receiving. It's (symbol rate) * (bits per symbol). "bits per symbol" is of course log2(constellation points). > Is there unlimited bit rate option for check to

[Discuss-gnuradio] benchmark_tx(rx).py throughput as modulation

Hi all. I'm using benchmark_tx.py and rx (/digital/example/narrowband) As I know, ex) QAM modulation is faster than BPSK one. However, when I used both of modulation schemes, I couldn't measure throughput. I think it is up to bit rate, but I don't know exactly what it is. Is there unlimited

Re: [Discuss-gnuradio] UHD Source Block and N210/SBX Synchronisation

On 03/01/2016 10:43 AM, Marcus D. Leech wrote: The only thing really missing in gr-uhd is the ability to do timed commands. You can force integer-N mode by constructing your own tune_request that includes the integer-N option. You'd use a feature from the latest Gnu Radio to help you with

Re: [Discuss-gnuradio] gr-ieee 802.11 Wifi Transceiver Issue

> On 01 Mar 2016, at 16:04, Abhinav Jadon wrote: > > Hi, > Updated the module, the same problem persists although this time the > transmitter took longer than usual to turn off. I’m running a bit out of ideas :-/ Since I cannot reproduce the problem, it would be

Re: [Discuss-gnuradio] gr-ieee 802.11 Wifi Transceiver Issue

Hi, Updated the module, the same problem persists although this time the transmitter took longer than usual to turn off. Cheers Abhinav PS Jadon 2012122 Electronics and Communication Engineering Undergraduate IIIT - Delhi IASc Summer Research Fellow 2015 *E*: jadonabhi...@gmail.com *M*:

Re: [Discuss-gnuradio] polar code example

I used the new pybombs to install gnuradio and it installed gr-polar automatically. So any error I am seeing is built into that flow. > On Tue, Mar 1, 2016 at 1:34 PM, Johnathan Corgan > wrote: > >> If it isn't working with 3.7.9.1, it's not the bug I was thinking of.

Re: [Discuss-gnuradio] gr-ieee 802.11 Wifi Transceiver Issue

Hi, I just pushed a commit to github. Would be great, if you could update the module and let me know if that fixes your problem. Best, Bastian > On 01 Mar 2016, at 15:25, Abhinav Jadon wrote: > > Hi , > Sorry for the delay in following up. Had mid semester exams

Re: [Discuss-gnuradio] gr-ieee 802.11 Wifi Transceiver Issue

Hi , Sorry for the delay in following up. Had mid semester exams to prepare for. I have a 8GB RAM Core i7 PC. Just to be sure that this wasn't a PC issue. I ran it on a 16GB RAM Core i5 PC. Same issue propped up. So that leaves out the memory leak option. Abhinav PS Jadon 2012122 Electronics and

Re: [Discuss-gnuradio] polar code example

On Tue, Mar 1, 2016 at 11:42 AM, Jose Ruvalcaba wrote: > I was wondering if anyone has seen this issue I am encountering when > trying to run polar_code_example.grc. Whenever I open the file my POLAR > code configurator block shows: > > Value

Re: [Discuss-gnuradio] polar code example

Dear Jose, I'm not very experienced with gr-polar, but: did you successfully build & install gr-polar? Best regards, Marcus On 03/01/2016 08:42 PM, Jose Ruvalcaba wrote: > Hello All, > > I was wondering if anyone has seen this issue I am encountering when > trying to run polar_code_example.grc.

[Discuss-gnuradio] polar code example

Hello All, I was wondering if anyone has seen this issue I am encountering when trying to run polar_code_example.grc. Whenever I open the file my POLAR code configurator block shows: Value "polar.load_frozen_bits_info(True, "polar.CHANNEL_TYPE_BEC", block_size, n_info_bits, 0.0, 32)" cannot be

Re: [Discuss-gnuradio] UHD Source Block and N210/SBX Synchronisation

On 03/01/2016 10:53 AM, Nigel Steed wrote: Thanks Marcus, I have now implemented the tune request with a python module. Integer N mode really helps with eliminating the spurs. I have also added timed commands within the python file, but when I read the N210 timer, all the fractional values

Re: [Discuss-gnuradio] UHD Source Block and N210/SBX Synchronisation

Thanks Marcus, I have now implemented the tune request with a python module. Integer N mode really helps with eliminating the spurs. I have also added timed commands within the python file, but when I read the N210 timer, all the fractional values are fixed at .9998. I have therefore

Re: [Discuss-gnuradio] UHD Source Block and N210/SBX Synchronisation

On 03/01/2016 04:57 AM, Nigel Steed wrote: Hi All, Has anyone managed to use/modify the UHD Source Block to phase synchronise multiple N210/SBX ? From what I have read I must perform the following (1)Configure to use external references (10MHz and 1PPS) using the options in the UHD Source

Re: [Discuss-gnuradio] gr-ieee802-11

Hi, > On 01 Mar 2016, at 05:34, Fujiwara wrote: > > Hi everyone! > I am a beginner of GNU Radio. I found a very nice work in > https://github.com/bastibl/gr-ieee802-11/tree/master and it does me a great > favor. I connected two USRP N210,one run wifi_tx.grc, the other

[Discuss-gnuradio] gr-ieee802-11

Hi everyone! I am a beginner of GNU Radio. I found a very nice work in https://github.com/bastibl/gr-ieee802-11/tree/master and it does me a great favor. I connected two USRP N210,one run wifi_tx.grc, the other run wifi_rx.grc, it worked. But when I want to use cellphone to receive the WiFi

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

Zs, SNR is something that depends on your signal. We can't tell you what signal you have. The number I can give you is the Noise Figure of the SBX at room temperature. It's something that depends on both gain and frequency. You can find the measurement data under [1]. Together with the normal

Re: [Discuss-gnuradio] Saving Waterfall to Video File

Dan, That sounds like a useful approach but isn’t something I have any experience with. Can you go into more detail on how you prepared the file with the decimated vectors and then what the process is to plot it? Best Regards, Stephen Berger TEM Consulting, LP Web Site -

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

Hi, And I want to know the "phase noise variance" of our instrument?Thanks so much. 2016-03-01 20:50 GMT+08:00 w xd : > Hi, > > I used the USRP N210 and sbx board.What is the dynamic range of the > instrument?Namely the maximum SNR?Thanks so much. > > Best Regards, > zs >

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

Hi, I used the USRP N210 and sbx board.What is the dynamic range of the instrument?Namely the maximum SNR?Thanks so much. Best Regards, zs 2016-03-01 19:58 GMT+08:00 Marcus Müller : > I think that question answers itself if you consider what SNR is. > > Best regards,

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

I think that question answers itself if you consider what SNR is. Best regards, Marcus On 01.03.2016 12:34, w xd wrote: > Thanks so much. > > In this case,I just change the gain of the transmitter,will be change > the snr of the receiver? > > Thanks. > > 2016-03-01 19:02 GMT+08:00 Marcus Müller

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

Thanks so much. In this case,I just change the gain of the transmitter,will be change the snr of the receiver? Thanks. 2016-03-01 19:02 GMT+08:00 Marcus Müller : > Dear zs, > > > I want to change the ratio of power of the received signal to power of > the noise. > >

[Discuss-gnuradio] UHD Source Block and N210/SBX Synchronisation

Hi All, Has anyone managed to use/modify the UHD Source Block to phase synchronise multiple N210/SBX ? >From what I have read I must perform the following (1)Configure to use external references (10MHz and 1PPS) using the options in the UHD Source Block (2)Use integer N mode for the

Re: [Discuss-gnuradio] Aliasing on USRP N210

Dear Roee, I'd like to illustrate a bit how the USRP generates spectrum from the signal you provide 1. get baseband samples from host with $f_\text{sample}$ 2. upsample to $f_\text{master clock rate}$, suppressing aliases 3. shift digitally in frequency by multiplication with a complex sinusoid

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

Dear zs, > I want to change the ratio of power of the received signal to power of the noise. well, improving receiver SNR is the *core* problem of all wireless communication. Unless you just add noise (on the receiver or the transmitter side, depending on whether you want your noise to be

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

Sorry for that. I'm now using the USRP N210,one transmitter and one receiver.I want to change the ratio of power of the received signal to power of the noise.And I want to change the gain of the transmitter. 2016-03-01 16:45 GMT+08:00 Marcus Müller : > Dear zs, > >

Re: [Discuss-gnuradio] How to change the SNR through gnuradio

Dear zs, your question is absolutely unclear. SNR of what? What instrument? TX or RX, or simulation? Best regards, Marcus On 01.03.2016 07:06, w xd wrote: > Hi, > >I want to change the SNR through gnuradio.Can I realize it by just > change the gain of the gnuradio?Or the instrument is