# GNU Radio **URL:** https://www.ruby-forum.com/c/gnu-radio/15.md?page=84 [Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md) **Page:** 85 --- ## [GNU Radio releases 3.7.3 and 3.7.2.2](https://www.ruby-forum.com/t/gnu-radio-releases-3-7-3-and-3-7-2-2/239840)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 1\ **Last updated:** [March 16, 2014, 11:29pm UTC](https://www.ruby-forum.com/t/gnu-radio-releases-3-7-3-and-3-7-2-2/239840 "2014-03-16T23:29:04Z")
GNU Radio releases 3.7.3 and 3.7.2.2 are available for download: http://gnuradio.org/releases/gnuradio/gnuradio-3.7.3.tar.gz http://gnuradio.org/releases/gnuradio/gnuradio-3.7.2.2.tar.gz MD5 sums: a51e1c2860d6b289233… --- ## [Error with GR-DVB : macro missing](https://www.ruby-forum.com/t/error-with-gr-dvb-macro-missing/239839)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 0\ **Last updated:** [March 16, 2014, 10:21pm UTC](https://www.ruby-forum.com/t/error-with-gr-dvb-macro-missing/239839 "2014-03-16T22:21:17Z")
Hi everybody, I’m trying to install the gr-dvb project from Edmund Tse (GitHub - EdmundTse/gr-dvb) on gnruradio 3.5.3.2. When I launch the ./configure command during the install process, I get this kind of errors : L… --- ## [Throttle question](https://www.ruby-forum.com/t/throttle-question/239835)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 3\ **Last updated:** [March 16, 2014, 6:11pm UTC](https://www.ruby-forum.com/t/throttle-question/239835 "2014-03-16T18:11:58Z")
For testing purposes I use vector source (byte ) -\> vector to stream -\> throttle -\> \[blocks to test\] In the vector source “repeat” is set to “yes” and the sample rate is set to 1024 ( and in the throttle block , too … --- ## [Failure of sending square wave over USRPs (back-to-back)](https://www.ruby-forum.com/t/failure-of-sending-square-wave-over-usrps-back-to-back/239781)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 23\ **Last updated:** [March 16, 2014, 4:55am UTC](https://www.ruby-forum.com/t/failure-of-sending-square-wave-over-usrps-back-to-back/239781 "2014-03-16T04:55:42Z")
Dear Sir, I try to send square wave from one USRP to another. The received signal at the receiver USRP is very different from what was being sent. This is just a very simple setup. What could be wrong …? Setup: Ther… --- ## [WWVB monitoring with GNU radio](https://www.ruby-forum.com/t/wwvb-monitoring-with-gnu-radio/239827)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [March 16, 2014, 3:40am UTC](https://www.ruby-forum.com/t/wwvb-monitoring-with-gnu-radio/239827 "2014-03-16T03:40:39Z")
Here is an (almost) week long plot of WWVB signal strength taken with GR and N210 + LFRX + 500 kHz LPF + 100 foot wire. 25 Msps decimated down to 100 sps, then RMS to 1 sps. Very strong -60 dBm signal here 500 miles… --- ## [Re: For Sale: bladeRF x115 with GPIO expansion](https://www.ruby-forum.com/t/re-for-sale-bladerf-x115-with-gpio-expansion/239826)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 0\ **Last updated:** [March 16, 2014, 3:29am UTC](https://www.ruby-forum.com/t/re-for-sale-bladerf-x115-with-gpio-expansion/239826 "2014-03-16T03:29:03Z")
I built a prototype WWVB receiver in GR a couple of years ago, but I don’t locally get WWVB :frowning: Neither did my LaCrosse clock though, so it wasn’t my fault :slight\_smile: I’ll post a new thread with some W… --- ## [For Sale: bladeRF x115 with GPIO expansion](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 7\ **Last updated:** [March 16, 2014, 3:00am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825 "2014-03-16T03:00:24Z")
I just don’t use it much since I primarily use 2m amateur band. Very clean and little use; never left my lab bench. The x115 is the large FPGA version. Also included is the GPIO expander board and the 1m USB 3.0 ca… --- ## [Cold not find Zynq gnuradio-runtime module](https://www.ruby-forum.com/t/cold-not-find-zynq-gnuradio-runtime-module/239664)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 5\ **Last updated:** [March 16, 2014, 12:53am UTC](https://www.ruby-forum.com/t/cold-not-find-zynq-gnuradio-runtime-module/239664 "2014-03-16T00:53:32Z")
I’m playing with gnuradio on zynq by following this tutorial http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq I’m playing with this great tutorial http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq But, w… --- ## [GRC issues with GNU Radio 3.7](https://www.ruby-forum.com/t/grc-issues-with-gnu-radio-3-7/239774)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [March 15, 2014, 9:18am UTC](https://www.ruby-forum.com/t/grc-issues-with-gnu-radio-3-7/239774 "2014-03-15T09:18:50Z")
Hello GR, I just installed GR 3.7 on my Centos 6.5 machine, everything I done is ok (I set the env. var. after accordingly). But when I run gnuradio-companion I got a bunch of errors appearing in the terminal: Err… --- ## [Suggestion for Laptops with Gig-E ports](https://www.ruby-forum.com/t/suggestion-for-laptops-with-gig-e-ports/239812)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 0\ **Last updated:** [March 15, 2014, 4:03am UTC](https://www.ruby-forum.com/t/suggestion-for-laptops-with-gig-e-ports/239812 "2014-03-15T04:03:59Z")
Hi Community, I have to procure a couple of laptops with Gig-E port for working with N series. Could you suggest some. Till now I was working with Desktops, but I have to travel frequently these days for demos. I did… --- ## [GNU Radio Conference 2014 - Registration is Open!](https://www.ruby-forum.com/t/gnu-radio-conference-2014-registration-is-open/239731)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 3\ **Last updated:** [March 14, 2014, 8:22pm UTC](https://www.ruby-forum.com/t/gnu-radio-conference-2014-registration-is-open/239731 "2014-03-14T20:22:04Z")
Greetings, We just wanted to let everyone know that registration for GNU Radio Conference 2014 is now open. Here is a quick overview of the event for those of you who have missed previous announcements: \*Date: \*Sept… --- ## [GSOC 14 proposal for project "Vector Network Analyzer"](https://www.ruby-forum.com/t/gsoc-14-proposal-for-project-vector-network-analyzer/239767)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [March 14, 2014, 2:58pm UTC](https://www.ruby-forum.com/t/gsoc-14-proposal-for-project-vector-network-analyzer/239767 "2014-03-14T14:58:21Z")
Hi Here’s the link for my proposal for the project “Vector Network Analyzer” https://docs.google.com/file/d/0B5wp9A\_w2B5scmVKOTlGbVFISm8/edit?pli=1 You can post comment on google doc also. I am all ears to any sugge… --- ## [GSoC'14 draft proposal - MIMO Transceiver](https://www.ruby-forum.com/t/gsoc14-draft-proposal-mimo-transceiver/239770)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 2\ **Last updated:** [March 14, 2014, 2:33pm UTC](https://www.ruby-forum.com/t/gsoc14-draft-proposal-mimo-transceiver/239770 "2014-03-14T14:33:55Z")
Hello, Here’s the link for my proposal for the project “MIMO Transceiver” https://github.com/kunal2904/GSoC-14 Please let me know your feedback on this. Thanks and regards, Kunal Sankhe IIIT Hyderabad, India --- ## [Another newbie question](https://www.ruby-forum.com/t/another-newbie-question/239789)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [March 14, 2014, 12:04pm UTC](https://www.ruby-forum.com/t/another-newbie-question/239789 "2014-03-14T12:04:53Z")
So I tried out the PyBombs install method as documented on the wiki. Very nice. No worries about missing pieces, almost. Apparently the version that is out there doesn’t know how to make python-lxml. I also cannot ge… --- ## [\[GSoC\] Proposals on Melange](https://www.ruby-forum.com/t/gsoc-proposals-on-melange/239785)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [March 14, 2014, 10:21am UTC](https://www.ruby-forum.com/t/gsoc-proposals-on-melange/239785 "2014-03-14T10:21:00Z")
I would like to remind all students to submit their proposals to google-melange.com as well. If you have your proposal on github, which is the recommended way to do this, all you have to do is post a link (if you post… --- ## [GSoc2014 gr-trellis/turboeq proposal](https://www.ruby-forum.com/t/gsoc2014-gr-trellis-turboeq-proposal/239734)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [March 14, 2014, 7:18am UTC](https://www.ruby-forum.com/t/gsoc2014-gr-trellis-turboeq-proposal/239734 "2014-03-14T07:18:08Z")
Hey guys, I finally finished a first draft of my proposal for GSoC 2014 on improvements for gr-trellis and a turboeq block. It’s available on github: https://github.com/SpectreJan/GSoC2014 Please let me know what yo… --- ## [Controlport error in GRC](https://www.ruby-forum.com/t/controlport-error-in-grc/239729)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 5\ **Last updated:** [March 14, 2014, 7:14am UTC](https://www.ruby-forum.com/t/controlport-error-in-grc/239729 "2014-03-14T07:14:29Z")
Hi, I am trying to run a GRC flow graph with control port probe and control port monitor. I get the following error in GRC: Traceback (most recent call last): File “/usr/local/bin/gr-ctrlport-monitor”, line 30, in … --- ## [Support e-mails to support@ettus.com](https://www.ruby-forum.com/t/support-e-mails-to-support-ettus-com/239779)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [March 14, 2014, 3:18am UTC](https://www.ruby-forum.com/t/support-e-mails-to-support-ettus-com/239779 "2014-03-14T03:18:19Z")
Folks: I’ve been on the road for the last 8 days, and I just got back this evening. Any of you who are waiting for a reply from removed\_email\_address@domain.invalid, I’ll be working my way through the back-log tomor… --- ## [Adding meta-sdr to openembedded](https://www.ruby-forum.com/t/adding-meta-sdr-to-openembedded/239778)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [March 14, 2014, 2:47am UTC](https://www.ruby-forum.com/t/adding-meta-sdr-to-openembedded/239778 "2014-03-14T02:47:15Z")
I have a basic bblayers.conf with one layer BBLAYERS ?= " /home/rcagley/oe-zed/openembedded-core/meta " I’ve initialized the build system . ./oe-init-build-env …/build/ …/bitbake/ and then I’ve bitbaked bitbake … --- ## [Change center freq of usrp\_source block automatically in incremental way](https://www.ruby-forum.com/t/change-center-freq-of-usrp-source-block-automatically-in-incremental-way/239740)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [March 13, 2014, 9:24pm UTC](https://www.ruby-forum.com/t/change-center-freq-of-usrp-source-block-automatically-in-incremental-way/239740 "2014-03-13T21:24:58Z")
Hi I want to make block diagram in grc such that the center freq of usrp\_source should be automatically changed in incremental way defined by min and max boundary. I don’t want to take input from qt-qui slider. Just… --- ## [GSOC 2014 - Automatic Filter Optimization](https://www.ruby-forum.com/t/gsoc-2014-automatic-filter-optimization/239735)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 1\ **Last updated:** [March 13, 2014, 9:12pm UTC](https://www.ruby-forum.com/t/gsoc-2014-automatic-filter-optimization/239735 "2014-03-13T21:12:10Z")
Hi everyone, I’m Sujath N., doing my Masters from Indian Institute of Technology,Bombay in the field of Communication and Signal Processing.I’m interested in the project of Automatic Filter optimization in Gnuradio. … --- ## [RX Channel Out Of Range](https://www.ruby-forum.com/t/rx-channel-out-of-range/239750)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 3\ **Last updated:** [March 13, 2014, 10:50am UTC](https://www.ruby-forum.com/t/rx-channel-out-of-range/239750 "2014-03-13T10:50:52Z")
Hi All, I am using GNU Radio Companion version 3.6.2. When I execute a simple flowgraph (containing two blocks: USRP Source and WX GUI FFT Sink), it generates the following error: RuntimeError: LookupError: IndexErr… --- ## [Running Flowgraph some a certain period of time](https://www.ruby-forum.com/t/running-flowgraph-some-a-certain-period-of-time/239748)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [March 13, 2014, 9:24am UTC](https://www.ruby-forum.com/t/running-flowgraph-some-a-certain-period-of-time/239748 "2014-03-13T09:24:58Z")
Hello GR, Is there a way how to run my flowgraph for a given number of minutes/seconds then stop it. I’d like to know too how to reconfigure my flowgraph (after I stop it from runtime) and resume its run after I… --- ## [About matlab and Gnuradio](https://www.ruby-forum.com/t/about-matlab-and-gnuradio/239743)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [March 13, 2014, 2:44am UTC](https://www.ruby-forum.com/t/about-matlab-and-gnuradio/239743 "2014-03-13T02:44:16Z")
Dear All, I have a general questions about matlab and GNUradio. Both of them are support USRP N210, but i want to ask what is the strength of each other? I guess matlab delays more than gnuradio, and has less open cod… --- ## [OSX, Xcode 5.1, Boost, UHD, GNU Radio, and MacPorts](https://www.ruby-forum.com/t/osx-xcode-5-1-boost-uhd-gnu-radio-and-macports/239747)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 0\ **Last updated:** [March 12, 2014, 9:33pm UTC](https://www.ruby-forum.com/t/osx-xcode-5-1-boost-uhd-gnu-radio-and-macports/239747 "2014-03-12T21:33:15Z")
Xcode 5.1 is for both OSX 10.8 and 10.9 only, so this “note” applies to both of those OSX versions. The new Xcode 5.1 breaks Boost compilation, which in turn breaks UHD and GNU Radio compilation (in similar ways). Bo… --- ## [Variable propagation delays](https://www.ruby-forum.com/t/variable-propagation-delays/239744)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 0\ **Last updated:** [March 12, 2014, 8:52pm UTC](https://www.ruby-forum.com/t/variable-propagation-delays/239744 "2014-03-12T20:52:26Z")
Hello, My application requires very consistent propagation delays from TX to RX between measurements (within 1 sample or so). I am seeing some odd behavior and could use a little help. My flowgraph is as follows: V… --- ## [GSoC 2014: Wireless Network in the loop](https://www.ruby-forum.com/t/gsoc-2014-wireless-network-in-the-loop/239677)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 3\ **Last updated:** [March 12, 2014, 8:47pm UTC](https://www.ruby-forum.com/t/gsoc-2014-wireless-network-in-the-loop/239677 "2014-03-12T20:47:33Z")
Dear All, My name is Asma Afzal. I am currently pursuing a PhD in Electrical Engineering (Wireless Communication ) from the University of Leeds, UK. I am interested in working on the WiNeLo GSoC project. WiNeLo is an … --- ## [GR-UHD detected ABI compatibility mismatch with UHD library](https://www.ruby-forum.com/t/gr-uhd-detected-abi-compatibility-mismatch-with-uhd-library/239739)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [March 12, 2014, 8:33pm UTC](https://www.ruby-forum.com/t/gr-uhd-detected-abi-compatibility-mismatch-with-uhd-library/239739 "2014-03-12T20:33:31Z")
Hi All, After installing UHD and GNU Radio, when I execute any flowgraph using the USRP, I find this error: \*RuntimeError: \* GR-UHD detected ABI compatibility mismatch with UHD library. GR-UHD was build against ABI… --- ## [Re: gr-cdma is ready](https://www.ruby-forum.com/t/re-gr-cdma-is-ready/239733)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [March 12, 2014, 5:32pm UTC](https://www.ruby-forum.com/t/re-gr-cdma-is-ready/239733 "2014-03-12T17:32:02Z")
\---------- Forwarded message ---------- From: Zhe F. removed\_email\_address@domain.invalid Date: Sun, Mar 9, 2014 at 2:42 PM Subject: Re: \[Discuss-gnuradio\] gr-cdma is ready To: Karan T. removed\_email\_address@domain.i… --- ## [Gr-ctrlport](https://www.ruby-forum.com/t/gr-ctrlport/239730)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 2\ **Last updated:** [March 12, 2014, 2:55pm UTC](https://www.ruby-forum.com/t/gr-ctrlport/239730 "2014-03-12T14:55:22Z")
I am building GNU Radio 3.7.3 from source and wish to enable the CTRLPORT module. I have already installed Ice-3.5.1 for C++ in the location /opt/Ice-3.5.1 (satisfying required dependencies) My current gcc version is… [Previous page](https://www.ruby-forum.com/c/gnu-radio/15.md?page=83) [Next page](https://www.ruby-forum.com/c/gnu-radio/15.md?page=85)