Re: [Discuss-gnuradio] Problem with gnuradio-companion and HackRF

2014-09-09 Thread GeorgeF
When I run "sudo apt-get install hackrf-tools" I get the following: "E: Unable to locate package hackrf-tools". I then assumed that the command should be "sudo apt-get install hackrf". That seemed to install something. I then added the needed line to 52-hackrf.rules and rebooted. Now when I

Re: [Discuss-gnuradio] Problem with gnuradio-companion and HackRF

2014-09-09 Thread Doug Hutton
Try this page: https://github.com/mossmann/hackrf/wiki/FAQ On 9/9/2014 7:24 AM, GeorgeF wrote: When I run "sudo apt-get install hackrf-tools" I get the following: "E: Unable to locate package hackrf-tools". I then assumed that the command should be "sudo apt-get install hackrf". That seem

Re: [Discuss-gnuradio] USRP I/O Buffering

2014-09-09 Thread Peter Witkowski
As a heads up, I was able to get everything working using only GNURadio Companion. I tied the USRP Source into a Stream-to-Vector block and created a 20 MS buffer. From there I sent the 20 MS vector to the File Meta Sink. This adds some latency, but for my application this is perfectly OK. I ha

Re: [Discuss-gnuradio] TX Gain parameter in uhd_siggen_gui

2014-09-09 Thread Tom Rondeau
On Mon, Sep 8, 2014 at 11:13 PM, zealdeal wrote: > Thanks for the info. Can anybody please confirm whether the step size limit > of 0.5 dB is valid for USRP N200? > Use their tool uhd_usrp_probe to find the specifics of your USRP and daughterboards. Tom _

Re: [Discuss-gnuradio] USRP I/O Buffering

2014-09-09 Thread Marcus Müller
Hi, this is very interesting! As this actually seems to be more of a storage issue, I think kernel-based solutions might be good, too: (as root) |echo 90 > /proc/sys/vm/dirty_ratio echo 75 > /proc/sys/vm/dirty_background_ratio | |Should allow your kernel to use up up to 90% of your RAM for writ

Re: [Discuss-gnuradio] Clock Recovery MM

2014-09-09 Thread Tom Rondeau
On Mon, Sep 8, 2014 at 5:49 PM, Bastian Bloessl wrote: > Hi all, > > looking at the clock recovery MM code, I wonder if d_omega_relative_limit > is a relative or absolute deviation from d_omega. > > Here it looks like absolute > > https://github.com/gnuradio/gnuradio/blob/next/gr-digital/lib/cloc

Re: [Discuss-gnuradio] Problem with gnuradio-companion and HackRF

2014-09-09 Thread Richard Sharpe
On Tue, Sep 9, 2014 at 5:24 AM, GeorgeF wrote: > When I run "sudo apt-get install hackrf-tools" I get the following: "E: > Unable to locate package hackrf-tools". > > I then assumed that the command should be "sudo apt-get install hackrf". > That seemed to install something. > > I then added the n

[Discuss-gnuradio] Editing medium-to-large flow-graphs in GRC now *agonizing* slow

2014-09-09 Thread Marcus D. Leech
Has anyone else noticed that in recent GR, medium-to-large flow-graphs are now *agonizingly slow* to edit, even on relatively-capable machines? Larger graphs were always a tad sluggish, but it has now gotten to the point that larger ones are nearly uneditable, and medium ones are agonizing

Re: [Discuss-gnuradio] Clock Recovery MM

2014-09-09 Thread Bastian Bloessl
On 09 Sep 2014, at 15:42, Tom Rondeau wrote: > On Mon, Sep 8, 2014 at 5:49 PM, Bastian Bloessl wrote: > Hi all, > > looking at the clock recovery MM code, I wonder if d_omega_relative_limit is > a relative or absolute deviation from d_omega. > > Here it looks like absolute > https://github.c

Re: [Discuss-gnuradio] Editing medium-to-large flow-graphs in GRC now *agonizing* slow

2014-09-09 Thread Mike Jameson
Yes, even after a fresh reboot there is still a delayed reaction while dragging about blocks in GRC. GNU Radio Companion 3.7.5git-194-g76a271ac Ubuntu 14.04 x64 LTS Quad Core i7 Mike -- Mike Jameson M0MIK BSc MIET Email: m...@scanoo.com Web: http://scanoo.com On Tue, Sep 9, 2014 at 7:29 PM, Mar

Re: [Discuss-gnuradio] Editing medium-to-large flow-graphs in GRC now *agonizing* slow

2014-09-09 Thread Tiankun Hu
Yes, I have the same issue with v3.7.5 Thanks Tiankun Mike Jameson 编写： >___ >Discuss-gnuradio mailing list >Discuss-gnuradio@gnu.org >https://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnur

Re: [Discuss-gnuradio] Editing medium-to-large flow-graphs in GRC now *agonizing* slow

2014-09-09 Thread Marcus D. Leech
On 09/09/2014 08:20 PM, Tiankun Hu wrote: Yes, I have the same issue with v3.7.5 Thanks Tiankun Mike Jameson 编写： Yes, even after a fresh reboot there is still a delayed reaction while dragging about blocks in GRC. GNU Radio Companion 3.7.5git-194-g76a271ac Ubuntu 14.04 x64 LTS Quad Core i