First 100k is insufficient sample rate from the E110. An FM station has
150 kHz total swing (+/- 75 kHz) so the frequency range of your E110
complex output is 100 kHz and is therefore insufficient for the entire
modulation. You then feed the 100k sample per second signal into the FM
block
I have my new x300's. The NI ExpressCard-8360B is recognized by my Intel
5, Lenovo, 64 bit machine running U 14.04 LTS.
I naively assumed that given the way things had gone before, that this
would be a low impact out of the box experience. uhd_find_devices finds
nothing.
So I go and dig and
to an older kernel or distribution will fix it. This does not
affect ethernet connections.
Matt
On Apr 25, 2014 11:38 PM, Robert McGwier rwmcgw...@gmail.com wrote:
I have my new x300's. The NI ExpressCard-8360B is recognized by my Intel
5, Lenovo, 64 bit machine running U 14.04 LTS.
I
Tim and I are going to swap back to 12.04.4 LTS. I suggest that some note
to the installation for x3x0 say which versions of Ubuntu, kernels, etc.
are supported currently.
Thanks for your time.
Bob
On Sat, Apr 26, 2014 at 12:01 PM, Robert McGwier rwmcgw...@gmail.comwrote:
Okay, I thought
, Robert McGwier rwmcgw...@gmail.com wrote:
Tim and I are going to swap back to 12.04.4 LTS. I suggest that some note
to the installation for x3x0 say which versions of Ubuntu, kernels, etc.
are supported currently.
Thanks for your time.
Bob
On Sat, Apr 26, 2014 at 12:01 PM, Robert
It needed to be said, but my only goal is to
ACCEPT AND LOVE 10GigE until and unless you demand the low latency afforded
by the PCIe interface. The things I am working on demand that we meet the
tight timing requirements of open specification waveforms. PCIe was
required. The x3x0 series are
+blapointe=ll.mit@gnu.org [mailto:
discuss-gnuradio-bounces+blapointe=ll.mit@gnu.org] *On Behalf Of *Robert
McGwier
*Sent:* Monday, April 28, 2014 7:26 AM
*To:* Marcus D. Leech
*Cc:* Discuss-gnuradio@gnu.org
*Subject:* Re: [Discuss-gnuradio] X300 PCIe issues
It needed to be said, but my
Congrats!
On Tue, Apr 29, 2014 at 4:28 AM, Jan Krämer kraemer...@googlemail.comwrote:
Hey,
another Google Summer of Code announcement!
I'll be doing a project on speeding up gr-trellis! Whoever wants more info
on my project can get it on Github
https://github.com/spectrejan
and I will
There are several dependencies for gr-specest not included in the recipe
for pybombs and some not listed in the gr-specest list of dependencies but
implied by the text. The recipe for gr-specest in pybombs doesn't include
liblapack-dev, libblas-dev, and libarmadillo-dev.
These include the list
And what is the size of the VM disk limited to and how much RAM have you
allowed it? The step you are showing as exiting in (SWIG) requires lots of
resources in building gnuradio. I hate SWIG, but have no idea what in the
world we would do without it.
On Sun, May 25, 2014 at 6:16 AM, Marcus
It is a very difficult thing to implement practically and is so close to
necessary limitation that you should just consider it necessary and move on.
Bob
On Thu, Jul 3, 2014 at 5:40 PM, emat...@yahoo.com wrote:
Hello-
when creating a flowgraph in GRC there are times I would like to change
Ooops. Good catch Bastian.
On Fri, Sep 26, 2014 at 2:29 PM, Tom Rondeau t...@trondeau.com wrote:
On Tue, Sep 9, 2014 at 3:21 PM, Bastian Bloessl bloe...@ccs-labs.org
wrote:
On 09 Sep 2014, at 15:42, Tom Rondeau t...@trondeau.com wrote:
On Mon, Sep 8, 2014 at 5:49 PM, Bastian Bloessl
Zhe, every single developer who has ever written for GnuRadio runs into
this particular swig necessity and searches like mad, certain it is done...
Congrats.
On Tue, Oct 7, 2014 at 8:18 AM, Zhe Feng feng...@umich.edu wrote:
Hi Marcus, Martin and Bastian,
Thanks for your help!
You are
Brad:
You are treating an FFT as if it were a spectrum analyzer which produces a
magnitude or energy profile of how much signal is at a particular
frequency. The FFT does much more than that. It tells not only what
magnitude is at a frequency but what phase angle the signal has there.
Let's
The last time I did this I had written the routine
;-)
Bob
On Nov 23, 2011 11:18 AM, Ben Hilburn b...@ettus.com wrote:
Heh, sometimes you have to e-mail a public list before any of it makes
sense. Happens to me all the time =)
Cheers,
Ben
On Wed, Nov 23, 2011 at 8:53 AM, Marcus M
At high SNR, a single bit is probably enough in the detector and 15 bits
in the phase accumulator is also likely more than enough. The error, in my
opinion, is elsewhere.
Tell us about your work here please:
https://www.cgran.org/
after you have set up your git repository here:
,
** **
Your guess is correct, I found the error from Transmitter side. Now the
synchronization is working fine.
** **
PN
** **
*From:* Robert McGwier [mailto:rwmcgw...@gmail.com]
*Sent:* Thursday, December 15, 2011 8:53 PM
*To:* Phone Naing MYINT
*Cc:* discuss-gnuradio@gnu.org
Capture your complex command line in a shell script seems an easy way to do
this yesterday, today, and tomorrow.
Bob
On Friday, December 23, 2011, Andrew Davis glneolistm...@gmail.com wrote:
That might work, but why worry about people who reconfigure just yet, us
who use the device
Able to use sample rates of 20 MHz doesn't necessarily include doing
something as slow and killing of performance as display of an FFT.
Bob
On Tuesday, May 1, 2012, frankist wrote:
Hi,
I was interested in working with detectors for OFDM 802.11b in my USRP2.
I've read on the internet about
Adaptive filtering, whether FIR or IIR, will change the taps dynamically.
I love the design tool idea.
Bob
On Wednesday, July 25, 2012, sreeraj r wrote:
I didnt mean to imply that there was some kind of formal discussion tool
like a forum thread. I was just referring to these emails:
How about looking at the libvolk components and see how SSE is done and
mimic?
On Sep 17, 2012 12:51 AM, Kyle Zhou kyle...@gmail.com wrote:
I have a block which depends on sse2. I need to tell cmake to check if the
cpu support sse2 in order to determine if the sse2 acceleated version or a
http://listings.jobs.vt.edu/applicants/Central?quickFind=196236
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Owner and Technical Director, Allied Communication, LLC
Facebook: N4HYBob
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Hans:
Where are you resetting X?
On Tuesday, January 22, 2013, Hanz wrote:
Hi!
Im using a message queue to count data, while the data is sinked to a file.
Then if the counter reaches X i want the old file to be closed and continue
sinking in a new file. Then again if reaches X to switch to
I have seen several report gr-pager compilation problems.
I ran into this on a computer. The solution was straightforward. I did not
have ALL of the packages from
http://gnuradio.org/redmine/wiki/gnuradio/UbuntuInstall
installed because given the apt-get command indicated on that page
Jens:
Have you considered and rejected Pisarenko estimtion techniques or just not
tried them yet?
Thank you for your efforts
Bob
On Fri, Mar 26, 2010 at 6:58 PM, Jens Elsner jpels...@1c3.de wrote:
Hi Brian,
we've done some work to our 'Spectral Estimation Toolbox' and added
Burg's
On Friday, May 14, I am the moderator (and speaker) at the SDR forum at the
2:30 PM - 5 PM session. I have two speakers (Scotty on openhpsdr, and I
speak on general SDR topics).
I need to fill out this time and this leaves at least 1.5 hours to fill. I
would like to get this settled as soon as
Dayton SDR Forum is exciting this year. 4/5 of the talks are about
HPSDR-related and that is good with a great list of speakers.
Friday, 2:30-5 PM
Gerald Youngblood, Flex updates 2:30
Lyle Johnson, Embedded Processors for SDR 3:00
John Melton, SDR GUI 3:30
Scott Cowling, HPSDR update 4:00
LinkedIn
Robert McGwier requested to add you as a connection on LinkedIn:
--
Abdul,
I'd like to add you to my professional network on LinkedIn.
- Robert
Accept invitation from Robert McGwier
http://www.linkedin.com/e/kcqq4e-gdaj09g6-6s
Thanks to all, that is helpful.
On Tue, Mar 22, 2011 at 12:08 PM, Johnathan Corgan
jcor...@corganenterprises.com wrote:
On Tue, Mar 22, 2011 at 09:38, Josh Blum j...@joshknows.com wrote:
Potential fix:
http://gnuradio.org/cgit/jblum.git/commit/?id=34313eace681a82e230c38a8cd26c0001ee823ea
Is that something like mini-matt?
On Fri, Apr 8, 2011 at 3:08 PM, Josh Blum j...@ettus.com wrote:
On 04/08/2011 02:44 PM, jeremy ward wrote:
I have an Ettus 2 and an RFX2400 that I don't need anymore. I used them
a
couple times and they work great. If you're interested just drop me a
Is Josh Blum like Nicolas Bourbaki? If so we need to start a Wikipedia
page for that committee as well.
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Is Josh Blum like Nicolas Bourbaki? If so we need to start a Wikipedia
page for that committee as well.
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in attempting to force usrp to compile I did --enable-usrp.
USRP requires sdcc. sdcc not found. See http://sdcc.sf.net
Unable to find firmware compiler SDCC.
configure: error: Component usrp has errors; stopping.
n4hy@home gnuradio (master) $ which sdcc
/usr/libexec/sdcc/sdcc
n4hy@home
FC14, x86-64
Bob
On Tue, May 3, 2011 at 12:05 PM, Robert McGwier rwmcgw...@gmail.com wrote:
in attempting to force usrp to compile I did --enable-usrp.
USRP requires sdcc. sdcc not found. See http://sdcc.sf.net
Unable to find firmware compiler SDCC.
configure: error: Component usrp has
http://ossie.wireless.vt.edu/trac/
On Thu, May 5, 2011 at 4:24 AM, Jaco Meintjes jmeint...@csir.co.za wrote:
Hi,
Has anyone worked on JTRS (Joint Tactical Radios Sytems) SCA (Software
Communication Architecture) with GNURadio and UHD?
Regards,
Jaco
--
This message is subject to the
Vlad
It is apparent to me that you did not understand Josh's explanation.
Possibly he was not forceful enough. ;-).
This is not an error. It is the mathematical consequence of doing QAM with
rotational symmetries. YOU MUST provide your OWN synchronization to remove
the phase ambiguity. It is
On either my Ubuntu box or my Fedora box, 2.9.0 fails. I used 2.8.0 and all
is well.
I get it from sdcc sourceforge site and was done in a few minutes.
Bob
On May 26, 2011 6:15 AM, Tom Rondeau trondeau1...@gmail.com wrote:
On Thu, May 26, 2011 at 3:08 AM, Marcus D. Leech mle...@ripnet.com
That is the best source currently in my opinion especially his discussion of
HOW BAD RAISED COSINE FILTERS ARE AS NYQUIST FILTERS FOR DATA TRANSMISSION.
Bob
On Jun 29, 2011 4:11 AM, John Andrews gnu.f...@gmail.com wrote:
Yep! Done. fred harris' book helped the most.
Thanks
On Tue, Jun 28,
I think that many RF and wireless designers make a lot of assumptions as
well and never admit to the horror of the mobile channel. LTE is not
really realizing the needed increase in capacity to justify the rollout cost
of all of the needed infrastructure in my opinion but now everyone is all
in.
http://tech.slashdot.org/story/11/09/10/1539217/Security-Researchers-Crack-APCO-P25-Encryption
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Awesome
On Sep 23, 2011 5:31 PM, Tom Rondeau trondeau1...@gmail.com wrote:
On Fri, Sep 23, 2011 at 2:57 PM, Michael Dickens m...@alum.mit.edu wrote:
If you use MacPorts under Mac OS X 10.5, .6, or .7, sudo port install
gnuradio should work as of this morning for installing all of the
I don't know you seem pretty malicious to me
;-)
On Mon, Sep 26, 2011 at 9:37 AM, Tom Rondeau trondeau1...@gmail.com wrote:
On Mon, Sep 26, 2011 at 9:08 AM, Martin Braun martin.br...@kit.eduwrote:
Hi,
I just created an account (mbraun) on the wiki website, and found
out I can't
I believe people are answering the question but are slightly off target.
Create a group on your Linux distribution call USRP, make sure those users
you want control the USRP as users (AND NOT ROOT) are in this group. The go
read the gnuradio wiki about the other changes granting device
http://gnuradio.org/redmine/projects/gnuradio/wiki/UbuntuInstall
has configuring USRP support. Following these instructions will allow users
in the USRP group to run the hardware without root access.
Bob
On Fri, Oct 7, 2011 at 7:01 AM, Robert McGwier rwmcgw...@gmail.com wrote:
I believe
http://tombuntu.com/index.php/2011/10/03/install-gnome-shell-in-ubuntu-11-10/
--
Bob McGwier
Facebook: N4HYBob
ARS: N4HY
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Install gnome-tweak-tools to get advanced settings for gnome to be able to
get your favorite settings after you install gnome-shell.
On Mon, Oct 17, 2011 at 10:04 AM, Robert McGwier rwmcgw...@gmail.comwrote:
http://tombuntu.com/index.php/2011/10/03/install-gnome-shell-in-ubuntu-11-10
Yes I have. I disconnected it. In my opinion, it is overkill for anything
going on in a USRP1.
YMMV,
Bob
On Sun, Oct 9, 2011 at 1:43 AM, Mark Cetilia m...@cetilia.org wrote:
wondering if anybody out there has replaced their usrp1 fan with something
a bit quieter?
i find myself listening
1's.
Bob
On Tue, Oct 18, 2011 at 11:39 PM, Mark Cetilia m...@cetilia.org wrote:
Ah good, glad to hear it's not just me…
Do you run it with the top on or leave it open?
Cheers,
Mark
--
mark.cetilia.org | mem1.com | reduxproject.com
On Oct 18, 2011, at 11:02 PM, Robert McGwier wrote
Hello friends. One of the centers I belong to at Virginia Tech is
Wireless@VT. We run a conference every summer and we are holding it again
this summer.
http://www.wireless.vt.edu/symposium/2013/
And I know several of you are attending and we are looking forward to
hosting you.
At one time,
Thanks to GnuRadio, USRP, and Joe Gaeddart's liquid DSP.
http://www.hpcwire.com/hpcwire/2013-05-09/two_virginia_tech_teams_named_finalists_in_darpa_spectrum_challenge.html
Forgive if this is a repost.
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Well that is 80 dB of dynamic range inside the Nyquist zone (at best and
let's call it N). I can add a bit of increase in dynamic range by
downsampling (filter and decimation) and growing the accumulator size by a
bit for each decimation by 4. This will increase dynamic range. I don't
believe
I did an update to pybombs two days ago, and immediately gnuradio got to
around 57% completion and just hung my Ubuntu 13.10 computer so hard, I
couldn't get it to respond to ctrl-alt-del for over half and hour.
I tried again after doing a force rebuild on gnuradio and it was worse. I
long-hit
All it DOES see if ice3.4.
On Thu, Jan 9, 2014 at 12:09 PM, Dan CaJacob dan.caja...@gmail.com wrote:
Hey Tom,
Thanks. I didn't know how or what to search for, so that was useful.
Here's the result:
p kde-zeroconf - zeroconf plugins and kio
slaves for KDE
On Sun, Jul 20, 2008 at 12:08 AM, Eric Blossom [EMAIL PROTECTED] wrote:
I've collected scaling data on several machines and it looks good!
Executive summary:
All your core are belong to us!
I are more than pleased.
;-)
Eric
Bob
___
As Matt is so fond of pointing, I LOVE to install new toys.
I have F 8,9, Ubuntu 8.04 with F8 and F9 on x86, x86_64, PPC, and
Cell. I have Ubuntu 8.04 on x86, x86_64.
They all do gnuradio.
Bob
On Mon, Sep 8, 2008 at 7:56 PM, Eric Blossom [EMAIL PROTECTED] wrote:
Fedora 7, 8, and 9 are
Matt has been really pushing to get the USRP2 perfect and out. He has
ordered lots of them now and while I have no first hand knowledge, I
would suspect that the WBX0510 has slid linearly in time with the
slide of the USRP2. Matt would have to comment on this directly as I
have no first hand
In gnuradio-core, there will be new filter bank technology introduced
that will use gsl to accomplish the debauchery of the indices in
compact readable form. We are about to use gsl to compute discrete
wavelet transforms. There are others but these suffice.
One could always replace the
http://www.youtube.com/watch?v=KOgjkSzFzOI
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I am too lazy to check to see if this has been commented on before.
The boost, qwt,qt, qwtplot3d, swig, etc. in the Ubuntu 8.10 (Illness
Incarnate), support the new requirements of the current svn level
through configure, make, and make check.
Bob
On October 25 Matt wrote:
Build the firmware by running make in the gnuradio/usrp2 directory
Insert the SD card into the card reader, and the card reader into a
USB port on your computer
Run sudo u2_flash_tool --dev=/dev/ -t s/w
usrp2/firmware/txrx.bin -w
/dev/ has to
Agreed, Tom and I don't have Qt3 on our systems as we have moved on.
I think we need to change the tests to look SPECIFICALLY for qt4 since
that is what we support.
Bob
On Fri, Dec 12, 2008 at 1:27 PM, Rob Frohne rob.fro...@wallawalla.edu wrote:
Hi Everyone,
After removing qt3-mt-dev,
The new I7 intel processors have a really amazing amount of horsepower
but a tremendous amount of onboard stuff is designed to work
intimately with the peripherals to bring on high speed graphics. Now
if your argument is that all of this is going to be moved into the
GPP, I might agree that we
I guess all's well that ends well. I have 64 bit Linux and Windows XP
running on it. No hitches.
I see what you are talking about.
Bob
On Sun, Jan 11, 2009 at 6:14 PM, Frank Brickle bric...@pobox.com wrote:
On Sun, Jan 11, 2009 at 3:00 PM, Bob McGwier rwmcgw...@gmail.com wrote:
IF
http://www.vtnews.vt.edu/story.php?relyear=2009itemno=83
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http://www.nvidia.com/object/sff_ion.html
I think it is pretty clear that almost anyone with any real experience
would take Nvidia's restricted distribution graphics drivers about 100
to 1 over the open source CRAP that comes from ATI, and forget
completely any of their competitors. I have
Behrouz has improved his booked with editing and errata repair and
having the material tried out on students.
I used the book in a class in an early form, at work, and I am very
happy to report that Behrouz continues to improve on the work.
It does not yet have the OFDM chapter in it. I need to
http://www.youtube.com/watch?v=v4Wy7gRGgeA
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The SDR Forum at the Dayton Hamvention is Saturday 11:15 AM to 1:30 PM May 16.
This is the ARRL National convention as well so it should be well attended.
Because of missed emails, etc. (I was left off the email addressees so
I got none of the emails) we are now in a rush. The initial list,
On May 16 2008 at the ARRL National Convention and the Dayton
Hamvention we will have a software defined radio forum aimed at
amateur radio operators.
SO FAR:
Bob McGwier, N4HY SDR update ( 15 minutes)
Scott Cowling WA2DFI on HPSDR Project update (20 minutes)
Frank Brickle, AB2KT, on VR and
Room 5, Friday PM
http://www.hamvention.org/files/2009Forums-Friday.pdf
See you there.
Bob
N4HY
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I am not able to configure and compile GR on Ubuntu 9.04 using the
directions from the gnuradio.org/trac on any of three different
machines on which I attempted to do the upgrade. I then tried on one
of them doing a raw install (the one with the least stuff on it). The
same failure occurs, so
...@corganenterprises.com wrote:
On Sat, 2009-04-25 at 16:34 -0400, Robert McGwier wrote:
snip
And to clarify farther, we do not require PyQwt. We require the QWT
library, but not the Python version of it. When I upgraded from Ubuntu
8.10 to 9.04 last night, I have been able
My initial readings of the playstation three blurbs/datasheets
reveals they were incomplete. In addition to gigabit ethernet, it
does have USB support. Phil Covington pointed out this page:
http://felter.org/wesley/files/ps3/linux-20061110-docs/LinuxKernelOverview.html
and Sony is
Sattler, Jay wrote:
What Bob? You didn't order the Y-Bio 56 core Bioinformatics Cluster??
Maybe next time : )
How do I sign up? ;-).
Bob
--
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
If you board the wrong
make distclean; ./bootstrap;./configure;make;sudo make install
definitely seems in order.
Bob
Johnathan Corgan wrote:
On Tue, 2006-12-19 at 08:12 -0500, Greg Troxel wrote:
Undefined PLT symbol _ZN14gr_basic_block11basic_blockEv (symnum =
81)
This symbol is defined in a new file
I am getting build errors on 3 different machines which heretofore have
worked perfectly. It involves the pmt/mblock code.
The failure to build comes in the last step of building the libmblock.so
and libmblock-qa.so. pmt_nth, pmt_intern,
pmt_wrong_type::pmt_wrong_type, are all
Agreed
Eric Blossom wrote:
On Wed, Jan 17, 2007 at 05:45:33PM -0500, Illix wrote:
I'm getting the same problem (as far as I can tell) on an Ubuntu
6.10machine. The build fails with undefined references in
libmblock.so and libmblock-qa.so.
OK, I've looked at the log file that Bob
This seems to be a useful site. It is referenced several places
including the IBM web site.
http://ps3.qj.net/category/Linux/cid/3003
and general:
http://ps3.qj.net/index.php
73's
Bob
--
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC.
My local Target, Walmart, and others have PS3's on the shelf. They
have controllers, and accessories galore. That said, even with
shipping, I saved money (taxes, etc.) by buying from Fry's. My early
purchase from Terra (Yellow Dog) will be consumed by others when that
comes to fruition
I am doubting the libtool error in this one. If you have the libtool
error, it shows up well before this. You cannot complete the make.
IF you cannot complete the make, and it dies in making the mblock
message block code, then you can go back to the pmt directory and in
that directory do
In branches/developers/n4hy Tom and I have added ofdm2. It contains a
merge of the latest trunk with my ofdm directory. svn merge was
unusable for this and it had to be built by hand. This branch will be
the branch where ofdm work will be attempted by Tom, I, and others.
Caveat, I need
Johnathan Corgan wrote:
Robert McGwier wrote:
Caveat, I need the c++ hierarchy and wanted the dial_tone example to
work so this directory has been enabled in my branch.
The build system for C++ only applications has not been done yet.
The dial_tone example assumes the existence
They are $599 at my local Target. So much for bargains at Costco.
Bob
Eric A. Cottrell wrote:
Hello,
I was at my local Costco tonight and noticed they have the 60GB PS3 for
$699. I almost bought one but decided to check a Costco in NH first.
73 Eric
Both dttsp and gnuradio build on the PS3. I managed to get everything
to install. As I have always found with redhat/fedora installations,
what is absolutely seamless and without peer in Ubuntu is a royal pain
in the derriere with Fedora. I had to add all of the PYTHONPATH, etc.
as usual
http://n4hy.org/ps3_fedora.jpg
http://n4hy.org/ps3_dttsp.jpg
http://n4hy.org/ps3_gnuradio.jpg
Now to accomplish something useful.
Bob
--
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
Taking fun as simply fun and
Eric Blossom wrote:
On Sat, Feb 03, 2007 at 09:04:36AM -0500, Eric A. Cottrell wrote:
Is the 20 GB version missing something important for linux/GNURadio use?
Is it possible to put a bigger hard drive in? 20 and 60 GB hard drives
are so last century. :)
Besides the larger disk, the
Tom Rondeau wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:discuss-
[EMAIL PROTECTED] On Behalf Of Robert McGwier
Sent: Saturday, February 03, 2007 1:50 AM
To: [EMAIL PROTECTED]
Cc: gnuradio mailing list
Subject: [Discuss-gnuradio] Re: [dttsp-linux] dttsp-ps3
Both dttsp
It can and it does and I did it to component cables before I hooked up
hdmi.
I use my Sony LCD HDTV as the monitor (when it is needed) because the
PS3 is used to play games. For compiles, etc., I do not turn on X and
ssh in to a bash shell and work remotely. When we get the sound system
The OFDM work has begun under my (n4hy) branch. Next week it will
continue as I travel to Virginia Tech to work with Tom, Matt, and others
on this and other work.
When we have an OFDM transceiver and can drive one of the Flexible
boards from Matt on the air, we will move it into the trunk
In the n4hy developers branch, we spent today adding some new code and
cleaning up a huge mess. The old temporary mess (ofdm2) is gone and
ofdm has replaced it. This was current with the trunk this after and
has the ofdm code. We transmitted with this in the lab today.
My apologies for
Thanks for the note. Please keep them coming so we can learn how to
stabilize this across platforms. I made a modification to the
grc_gt_qtgui.m4 file in config that fixes the disparity between
Redhat/Fedora and Debian/Ubuntu qt.pc problems (thanks Jonathan for
aiming me in the right
This problem is understood. There is a change in libtool in the
Debian/Ubuntu community. I believed this was fixed here by finding out
some shell changes but it is not.
If you cannot build mblock, you need to install pmt, which alway
builds first. Go into the pmt directory and make
You have not read or internalized the specifications for the oscillator
on the USRP which is intimately involved in this system. It is 50 ppm
accuracy which is bad enough, but look at the can. It is begging to
have thermal variances. Start up the usrp and your process and
investigate
http://www.gnuradio.org/trac/browser/gnuradio/branches/developers/n4hy
is the trac and
svn co http://gnuradio.org/svn/gnuradio/branches/developers/n4hy/ofdm
gets you the source. I am merging the trunk into this about every 50
revisions unless I see major progress on mblock, usrp, etc that
There is a multiplier circuit/ PLL in the DBS-RX. Whatever phase noise
is coming from the oscillator is being multiplied considerably by this
upconversion to be used at LO in the DBS-RX. You cannot get low phase
noise oscillators and high performance mixers in that small a package.
Together
We definitely have work to do. Portaudio is the ONLY thing I can get to
work the PS3 sound system but not in gnuradio.
The pieces in the bin directory for testing portaudio that open the sink
only work. I can produce tones, hundreds of tones, do latency tests, etc.
gr-audio-XXX fails in
Eric Blossom wrote:
On Thu, Mar 08, 2007 at 08:15:47PM -0500, Robert McGwier wrote:
We definitely have work to do. Portaudio is the ONLY thing I can get to
work the PS3 sound system but not in gnuradio.
The pieces in the bin directory for testing portaudio that open the sink
only work. I
BUT, pthreads/win32 is available from cygwin. It compiles with mingw or
msvc. To my mind, they have done a good job. Threading code that
Brickle wrote ran immediately under pthreads/win32. There is some
chance omnithreads would work using this.
Bob
Don Ward wrote:
Can any of you who
I have been running the usrp wfm stereo receiver for a few hours under
Feisty Field Rat from Ubuntu.
The memory percentage for the python is absolutely steady at 4.0%. The
same with the Xorg process (at 1.9%). It appears the memory leak has
been repaired.
Bob
--
AMSAT Director and VP
I still get this as well. So far, the following technique (abhorent as
it is) works 100%. power off the USRP and power it back on causing it
to enumerate and come up raw. After that, the load works every time.
Bob
Eric Blossom wrote:
On Wed, Apr 25, 2007 at 02:32:44PM +0200, konvak
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