Re: [Discuss-gnuradio] Transition to new digtal TV blocks...

2015-05-11 Thread Ron Economos
You'll have to rebuild them. All the block names have changed from dvbt2_xxx to dtv_dvb_xxx (for blocks that are common to both DVB-T2 and DVB-S2) or dtv_dvbt2_xxx. However, there are new versions of vv003-cr23.grc, vv009-4kfft.grc and vv018-miso.grc in gnuradio/gr-dtv/examples that you can

[Discuss-gnuradio] Transition to new digtal TV blocks...

2015-05-11 Thread Ralph A. Schmid, dk5ras
Hi, Maybe a dumb question, but up to now I was using gr-dvbt2 downloaded as source, compiled and installed. Now gnuradio brings this stuff by default. So I wonder what may happen when I remove the duplicate blocks from the gr-dvbt2 package with a make uninstall. Will my grc files still be

Re: [Discuss-gnuradio] Transition to new digtal TV blocks...

2015-05-11 Thread Ralph A. Schmid, dk5ras
OK, tnx, no big deal, just good to know beforehand :) Ralph. -Original Message- From: discuss-gnuradio-bounces+ralph=schmid@gnu.org [mailto:discuss-gnuradio-bounces+ralph=schmid@gnu.org] On Behalf Of Ron Economos Sent: Monday, May 11, 2015 10:44 AM To:

Re: [Discuss-gnuradio] Question on control-loop block design

2015-05-11 Thread Tom Rondeau
On Tue, Apr 28, 2015 at 8:50 AM, ruben.m...@swisscom.com wrote: Hello, I've been looking into the design details of the control-loop block. I stumbled upon the blog post of Tom ( http://www.trondeau.com/blog/2011/8/13/control-loop-gain-values.html with the derivation

Re: [Discuss-gnuradio] OFDM Transmitter and Receiver - poor synchronization with USRP1

2015-05-11 Thread Martin Braun
On 09.05.2015 15:47, Michal Vaclík wrote: Doesn't seem so - by connecting scope to DETECT port on SC block I can see only randomly timed peeks as opposed to running with channel model where the peeks happen at fixed time periods. Detection seems to get better with higher sample rates. This

Re: [Discuss-gnuradio] Question on control-loop block design

2015-05-11 Thread Tom Rondeau
On Mon, May 11, 2015 at 12:00 PM, Richard Bell richard.be...@gmail.com wrote: From what I remember, there shouldn't be a functional difference. The difference is the amount of feedback delay in the loop. You always need to make sure one delay exists in any feedback path you can take, to avoid

Re: [Discuss-gnuradio] UHD USRP Source for B2x0 overflows File Sink

2015-05-11 Thread Murphy, John
Date: Sun, 10 May 2015 17:18:58 -0400 From: Marcus D. Leech mle...@ripnet.com You could try a simple experiment that tests your disk subsystem write performance without SDR stuff at all. Something like: time dd if=/dev/zero of=some-file-on-your-disk bs=200 count=15000 This should write a 30GB

Re: [Discuss-gnuradio] Is it possible to undo my mistake

2015-05-11 Thread Marcus Müller
But if you get hackrf libs through Ubuntu's package manager, do so before building anything related to HackRF (i.e. before running pybombs, especially before installing gr-osmosdr); The problem is that a program links against a specific ABI of a library -- in general, against *exactly* the same

Re: [Discuss-gnuradio] Is it possible to undo my mistake

2015-05-11 Thread West, Nathan
You can also get hackrf libs through Ubuntu's package manager. Whatever install method you choose it is best to avoid deleting installed libraries unless you really know what you are doing. -Nathan On Mon, May 11, 2015 at 12:37 PM, Martin Braun martin.br...@ettus.com wrote: Safest for GNU

Re: [Discuss-gnuradio] Question on control-loop block design

2015-05-11 Thread Richard Bell
From what I remember, there shouldn't be a functional difference. The difference is the amount of feedback delay in the loop. You always need to make sure one delay exists in any feedback path you can take, to avoid race conditions. After that, you want to minimize the loop delay. The one

[Discuss-gnuradio] Is it possible to undo my mistake

2015-05-11 Thread Carl Olsson
Hi all, I couldn't solve my problems so I decided to reinstall Ubuntu 14.04 LTS from the beginning on my hp elitebook 8460p. What is the safest (highest probability of working) way of installing gnuradio (and hackrf tools)? I just need a simple installation. Pybombs, build script, package

Re: [Discuss-gnuradio] Is it possible to undo my mistake

2015-05-11 Thread Martin Braun
Safest for GNU Radio is package manager. Can't speak for HackRF, but you can always use PyBOMBS. If you install GNU Radio through apt-get, and then HackRF through PyBOMBS, you might need to set GNU Radio as already installed in PyBOMBS. Cheers, Martin On 11.05.2015 10:35, Carl Olsson wrote: Hi