Re: [Discuss-gnuradio] wx_fft_sink block

Hello, I am using USRP N210 with CBX daughter board. In the GNU radio I use USRP_source block followed by wx_gui_fft sink block. I input a power of -60dB to the USRP. The input power is measured using a spectrum analyzer. The RF gain in the source block is kept at 0 dB, sample rate of 25 MHz and

Re: [Discuss-gnuradio] GNU Radio Project Leadership Updates

Hello everyone! I think it's time that I finally also lose a couple of words on this topic: Thanks everyone for making GNU Radio the most popular SDR framework with certainly the most interesting community! This, especially, applies to Johnathan, whose contributions on all levels, technically,

[Discuss-gnuradio] Triggering between two transmitters

Hi, I want to create a deterministic collision scenario between wifi and zigbee. I am using gr-ieee 80211 and gr-ieee 802154 along with USRP B210. I have a constraint that my wifi preambles should always collide with an ongoing zigbee transmission. In order to do that, I am thinking of

[Discuss-gnuradio] GNURadio BoF at FOSDEM

I've arranged a room for a one hour BoF (Birds of a Feather) at FOSDEM. Several GNU Radio developers will be on hand and we'd like a chance to meet as many of you as possible and talk about the project. The BoF is at 1200 Saturday in Room H.3227 Philip

[Discuss-gnuradio] FOSDEM: Last reminder, and BoF meeting on Saturday

Hi all, last chance to buy a train ticket to Brussels :) This weekend, we'll have FOSDEM as usual, with an SDR track that has a nice agenda: https://fosdem.org/2018/schedule/track/software_defined_radio/ Also, Phil Balister has organized a small room for GNU Radio-specific discussions on

Re: [Discuss-gnuradio] aligning received ofdm frames

Hi Shane - Your GRC scripts are just replicating what GR OFDM does by default, which is asynchronous detection on the Rx side. There is meta- data being supplied by the header that could be used if you wanted to modify the header/payload demux block. That said, unless you're going to continuously

Re: [Discuss-gnuradio] gnu radio installation on Mac via MacPorts

Hi Vipin - OK; interesting. Can you try the following: {{{ sudo port -f deactivate uhd sudo port install uhd-devel }}} then if those work, try running "uhd_fft" again & hopefully it will work. If not, send me the crash log off-list & we'll try something else. - MLD On Fri, Feb 2, 2018, at 1:23 PM,

Re: [Discuss-gnuradio] gnu radio installation on Mac via MacPorts

uhd-devel did the trick. No more crashes. Thanks a bunch! Vipin On Fri, Feb 2, 2018 at 11:18 AM, Michael Dickens wrote: > Hi Vipin - OK; interesting. Can you try the following: > {{{ > sudo port -f deactivate uhd > sudo port install uhd-devel > }}} > then if those

[Discuss-gnuradio] New to Gnu

Hello all, I've been doing radio and satellite communications professionally for about 10 years now. I've just started working with SDR and I have to say...wow. Even after 10 years as an RF tech, and university training in Computer Science, this stuff isn't easy to just "pick up". Thanks to all

[Discuss-gnuradio] IFFT block output incorrect?

Hi, I was trying to compare the output of the IFFT block and that from Matlab. Here's what I get: My input: [1,2,3,4] output from Matlab: [2.5+0j, -0.5-0.5j, -0.5+0j, -0.5+0.5j] output from gnuradio: [10+0j, 2+2j, -2+0j, 2-2j] parameter for the FFT block: fft.fft_vcc(4, False, (()), True, 1) It