I completely concur with what you wrote below and what Scott Johnson wrote some
time ago.
USRP is an incredibly powerful platform and substantially low cost - I am
somewhat befuddled by how it has not attained greater prevalence but at least
some of the reasons are plainly obvious
- incomplete
HI Pascal,
If you google for GRC tutorials, you should easily find some good ones on the
web. FSK is definitely possible to the best of my knowledge.
Data packets with header,.. CRC can be transmitted but I think you need to
store the bit sequence in a file and the received and demodulated data
Hi Nick,
High end fractional N PLL's generally have a settling time of 100us or less if
it is shifting to another frequency in the same band (say within 100MHz)
assuming a high enough loop bandwidth. If it is starting up for the first time,
then a few ms of settling time is ok.
I am just wonde
Hi Marcus and the folks at Ettus,
I am an extremely satisfied and happy user of your USRP's. We plan on buying a
lot more USRP's for our company since it is an outstanding cost effective
platform for testing and measurements.
However if I have to offer some criticism (and I assure you that this
Hi Colby,
Even if the two boards have slightly different frequencies, this should not
impact decoding of the receive signal as the received signal jumps between the
I and Q channels (depending of course on the packet lengths and assuming that
you have a packet decoder on I and Q separately).
M
I am trying to run this script available at
http://swigerco.com/gnuradio/ate/
to sweep through several frequencies and to log the data. However running the
script gives me an error regarding the "import usrp_siggen" (I am attaching
some of code below, the error is "no module named usrp_siggen.p
Hi Marc,
How much leakage are you seeing between TX and RX on a WBX board?
Yeah, GRC works fine for full duplex and it is very easy to set it up.
Best regards,
-Vijay
--- On Mon, 3/14/11, Marc Epard wrote:
From: Marc Epard
Subject: Re: [Discuss-gnuradio] UHD USRP2 full duplex mystery solved
I would like to know if there is a way to generate multiple windows using GRC.
Eg each window could contain an fft plot.
Combining more than 1 fft/scope plot on a single window does not quite work out
(the second window gets clipped with both manual and automated settings for
grid positions).
-gnuradio@gnu.org
Date: Friday, March 11, 2011, 8:28 PM
On 03/11/2011 08:20 PM, Vijay Pillai wrote:
Hi Josh,
If I am using a WBX board, what would be the setting for
selection RX2 on slot A
: discuss-gnuradio@gnu.org
Date: Friday, March 11, 2011, 8:05 PM
On 03/11/2011 04:54 PM, Vijay Pillai wrote:
> What is the subdevice spec (Mb0: subdevice_spec) for a USRP:UHD source?
>
> I tried A:1 (to select RX2 on slot A, as provided at
> http://www.ettus.com/uhd_docs/manual/html/usr
What is the subdevice spec (Mb0: subdevice_spec) for a USRP:UHD source?
I tried A:1 (to select RX2 on slot A, as provided at
http://www.ettus.com/uhd_docs/manual/html/usrp1.html) but it does not work and
gave an error.
Best regards,
-Vijay
__
Hi Devin,
You might have tried this already but here it goes : when i first got my WBX
board, I had a similar problem - TX works but not RX. The daughterboard seemed
to be securely attached (i had used only 2 screws). When i put in all 4 screws,
then both TX and RX began working.
Best regards
I will give this a shot and let you know how it goes (worst case, I can always
reinstall the OS; i am using Ubuntu 10.10).
A naive question : how does one run this script? I am thinking save it to a
file (say test) and run source test?
Best regards,
-Vijay
--- On Thu, 3/10/11, Marcus D. Leech
I read the following at
http://www.ruby-forum.com/topic/913817
where several users had problems installing UHD after thy installed gnu-radio
(the only fix was reinstalling everything including the OS). I have GNU-radio
up and running but dont have UHD. What is the recommended action?
Thank you
. Leech
Subject: Re: [Discuss-gnuradio] Cywgin vs Ubuntu
To: discuss-gnuradio@gnu.org
Date: Tuesday, March 8, 2011, 11:12 PM
On 03/08/2011 11:00 PM, Vijay Pillai wrote:
I initially tried to do everything on Cygwin. I spent
more than 4 days (12+hours per day) trying
I initially tried to do everything on Cygwin. I spent more than 4 days
(12+hours per day) trying to get this running without much success due all the
issues about differing versions of compilers, other errors on the board and so
on. Only for experts like Don Ward, would Cygwin be a feasible opti
, Josh Blum wrote:
> perhaps?
> http://gnuradio.org/redmine/wiki/1/UbuntuInstall#Broken-libtool-on-Debian-and-Ubuntu
>
> On 03/08/2011 06:16 PM, Vijay Pillai wrote:
>> I installed Ubuntu 10.10 on my XP machine (Dell latitude D630) and followed
>> all the instructions at
&
I installed Ubuntu 10.10 on my XP machine (Dell latitude D630) and followed all
the instructions at
http://gnuradio.org/redmine/wiki/gnuradio/UbuntuInstall.
Everything works fine till and including the "sudo make install" without any
errors. I tried running the dial_tone.py as instructed and I
regards,
-Vijay
--- On Mon, 3/7/11, Don Ward wrote:
From: Don Ward
Subject: Re: [Discuss-gnuradio] Error while building wxPython
To: Discuss-gnuradio@gnu.org
Date: Monday, March 7, 2011, 9:15 AM
Vijay Pillai wrote:
> I am following the instructions at (Step 9) available at
> http://gnurad
d = Condition(Lock())
error: can't allocate lock
--- On Sun, 3/6/11, Don Ward wrote:
From: Don Ward
Subject: Re: [Discuss-gnuradio] libstdc++ error on Cygwin
To: discuss-gnuradio@gnu.org
Date: Sunday, March 6, 2011, 8:34 PM
Vijay Pillai wrote:
> Something that I want to note was that a
I am following the instructions at (Step 9) available at
http://gnuradio.org/redmine/wiki/gnuradio/WxPythonCygwin
In the previous step, I am able to generate the test window so I assume
everything is working to that point. After running the following command
python setup.py build_ext --inplace WX
When I run "make" (after running ./configure), I get a series of errors. The
odd thing is that the error goes away or changes into something else when I run
"make" again.
Any ideas on what might be causing this? Or is it ok to re-run "make" till it
shows no errors.
I am reproducing the error me
.3.0/gnuradio-core/src'
make[1]: *** [check-recursive] Error 1
make[1]: Leaving directory `/home/Vijay/gnuradio-3.3.0/gnuradio-core'
make: *** [check-recursive] Error 1
$
--- On Sun, 3/6/11, Don Ward wrote:
From: Don Ward
Subject: Re: [Discuss-gnuradio] libstdc++ error on Cygwin
To: &q
I am trying to install gnuradio on an XP machine under Cygwin.
I followed all the instructions at
http://gnuradio.org/redmine/wiki/gnuradio/CygwinInstallMain
And ran the configure minimal system without any problems ($ ./configure
--disable-all-components --enable-gruel --enable-gnuradio-core
--
while installing portAudio
To: "Vijay Pillai" , Discuss-gnuradio@gnu.org
Date: Saturday, March 5, 2011, 5:41 PM
Vijay Pillai wrote:
> I followed the instructions at
>
> http://gnuradio.org/redmine/wiki/gnuradio/PortAudioInstall
>
> and am building under Cygwin. Everything w
I followed the instructions at
http://gnuradio.org/redmine/wiki/gnuradio/PortAudioInstall
and am building under Cygwin. Everything works till the final "make install".
The error that i get is
/usr/bin/install: cannot stat `./include/@INCLUDES@': No such file or director
make: *** [install] Er
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