Re: [Discuss-gnuradio] TX time control

Hi, Alright! I was thinking of using square wave and a multiplier but the duty cycle is 50%, I don't know how to change it. If I am sending a sine wave using signal source connected to the sink, how can I send in zero's after 2s for example? Is there any time control or variable I can use?

Re: [Discuss-gnuradio] TX time control

On Mon, May 14, 2018 at 08:13:13AM +, Yeo Jin Kuang Alvin (IA) wrote: > I would like to transmit for an amount of samples/seconds, and stop > transmitting for another few seconds and then transmit again. Example, > transmit 2s, stop for 3s and then transmit for 2s and rinse and repeat. You

[Discuss-gnuradio] Next GNU Radio Project Call: Thursday, 17-May-2018

Hi all, this Thursday, we're doing our monthly project call. The call is an update of current activities, and it's open to everyone. You can either join us on Google Hangouts (go to the #gnuradio channel in Slack or Freenode, where we'll be posting the link to join), or simply watch the

Re: [Discuss-gnuradio] Ettus E310 sample rate

On 05/14/2018 07:57 AM, Laura Huddleston wrote: > So just to clarify, I would need to program the FPGA explicitly if I > want to achieve a sample rate of higher than 8MS/s? To clarify, you don't have to program the FPGA to *set* the high clock rates, but to make any use of them you have to. -- M

Re: [Discuss-gnuradio] Ettus E310 sample rate

On 05/14/2018 08:51 PM, Yeo Jin Kuang Alvin (IA) wrote: Hi all, Does this apply to the B210 too? That is correct, handling data at a rate much higher than 8 MS/s will require moving DSP into the FPGA. UHD comes with a variety of example RFNoC blocks. The fosphor block for instance produces

Re: [Discuss-gnuradio] Ettus E310 sample rate

Hi all, Does this apply to the B210 too? That is correct, handling data at a rate much higher than 8 MS/s will require moving DSP into the FPGA. UHD comes with a variety of example RFNoC blocks. The fosphor block for instance produces a real time spectrum analyzer plot of the full 61.44 MS/s

Re: [Discuss-gnuradio] Ettus E310 sample rate

Hello Laura, That is correct, handling data at a rate much higher than 8 MS/s will require moving DSP into the FPGA. UHD comes with a variety of example RFNoC blocks. The fosphor block for instance produces a real time spectrum analyzer plot of the full 61.44 MS/s of the E310. Regards, Derek On

Re: [Discuss-gnuradio] Ettus E310 sample rate

So just to clarify, I would need to program the FPGA explicitly if I want to achieve a sample rate of higher than 8MS/s? ~ Laura Huddleston From: Derek Kozel Sent: Friday, May 11, 2018 1:53 PM To: Laura Huddleston Cc:

Re: [Discuss-gnuradio] UMTS cell scanner

This question is not related to GNU Radio at all. You should post this question on the openbts-discuss mailing list ( https://sourceforge.net/projects/openbts/lists/openbts-discuss). Take a look at OpenBTS-UMTS (https://github.com/RangeNetworks/OpenBTS-UMTS) as a starting point. It's a partial

Re: [Discuss-gnuradio] grc companion color theme Kubuntu 18.04

Sorry, I just noticed that gimp has a similar problem with tooltips. I guess you were right and it's a KDE issue. Not sure about the missing icon though. On 14 May 2018 at 13:54, Murray Thomson wrote: > Thanks Marcus, > > I thought to blame Kubuntu too but the rest

Re: [Discuss-gnuradio] grc companion color theme Kubuntu 18.04

Thanks Marcus, I thought to blame Kubuntu too but the rest of applications like Firefox, Dolphin, Kate, Eclipse... have a black background for their tooltips and changing the KDE desktop theme or look and feel didn't make any difference. The icon missing has the tooltip "Toggle visibility of

Re: [Discuss-gnuradio] grc companion color theme Kubuntu 18.04

Hi Murray, > background color … transparent I wasn't aware of that, but I'd call it a bug in Kubuntu (or, the way Kubuntu configures their KDE to configure GTK to show tooltips). What do you mean with "toggle visibility button"? Cheers, Marcus On Mon, 2018-05-14 at 12:56 +0100, Murray

[Discuss-gnuradio] grc companion color theme Kubuntu 18.04

Hi, I've installed grc companion (3.7.12.0 from pybombs) in Kubuntu 18.04 and the background color of the tooltips is transparent, which makes it difficult to read. I addition to this, the toggle visibility icon is not found. Could anyone point me in the right direction to edit this please?

Re: [Discuss-gnuradio] SDR, WITH SENSORS

Hello Fahad, Please keep the GNU Radio mailing list included. I am often not able to help on projects and the mailing list has many people on it who might be able to answer specific questions. Here's a wiki page which has some advice to help you ask the best questions and get useful responses.

Re: [Discuss-gnuradio] Discuss-gnuradio Digest, Vol 187, Issue 12

Hello Fahad, That sounds like a great starting place for learning about digital communications and SDR. It is a very broad project description though so it is hard to give specific advice. If you have not done the GNU Radio Tutorials, that's a great place to start. Also Great Scott Gadget's SDR

Re: [Discuss-gnuradio] USRP DDC and GNURadio Bandwidth Problem

Hello Ali, To extend what Marcus has said, here is a link to the UHD manual page about sample rates. http://files.ettus.com/manual/page_general.html#general_sampleratenotes Regards, Derek On Mon, May 14, 2018 at 8:54 AM, Müller, Marcus (CEL) wrote: > Hi Ali, > > just like the

[Discuss-gnuradio] TX time control

Hi, I would like to transmit for an amount of samples/seconds, and stop transmitting for another few seconds and then transmit again. Example, transmit 2s, stop for 3s and then transmit for 2s and rinse and repeat. How am I able to achieve this in GRC? Are there any examples? I've heard of

Re: [Discuss-gnuradio] USRP DDC and GNURadio Bandwidth Problem

Hi Ali, just like the console will tell you, 25 kS/s is simply impossible with an X310; instead, the minimum possible rate was used. You should probably just configure your X310 to get you e.g. 500 kS/s, and then resample in digital domain. If you're hesitant to design your own decimating

[Discuss-gnuradio] USRP DDC and GNURadio Bandwidth Problem

Hi to all, I am using GNURadio to control an X310. I want to get IQ samples for only 25 kHz bandwidth. When I wrote 25 kHz to the bandwidth line in UHD-Source block in GNURadio, I still see the signals at 50 kHz or 75 kHz away from the center. My sampling rate is 195312 Hz. When checked in

Re: [Discuss-gnuradio] Rx to tx GNU Radio

Hi, I’ve attached the GRC file. I am using USRP B210, I connected the RF cable from tx to a 30 dB attenuator back to the rx and then another RF cable from another tx to the Spectrum Analyzer. I am using GNU Radio Companion 3.7.9 . Thank you in advanced! From: Brent Stapleton