On Mon, Aug 02, 2010 at 02:07:38PM -0700, Eric Blossom wrote:
> On Mon, Aug 02, 2010 at 06:00:10PM +0200, Martin Braun wrote:
> > Sorry for the double-post, we were having problems with our SMTP today.
> >
> > On Mon, Aug 02, 2010 at 02:54:48PM +0200, Martin Braun wrote:
> > > chancoding_industrys
Hello everybody
I'm beginner of GNU Radio. My project use an USRP with BasicRx and WBX
daughter boards for receive signal frequencies 150 and 400 MHz respectively.
I have few question about WBX daughterboard as follows.
1. How does WBX daughterboard work?
2
Dear All,
Have anybody tried that using USRP2 to received bursts of data rather than
countinous?
I have tried doing this as the the sampling rate is very high and I have a
several blocks (that are calculation intensive) in my flow graphs. I am not
really interested in receiveing all the samples.
I'm having a problem similar to the one discussed in this thread:
http://lists.gnu.org/archive/html/discuss-gnuradio/2009-09/msg2.html
aka http://www.ruby-forum.com/topic/194488
If I run the test program from that post, it works sometimes, but occasionally
an assertion goes off as shown in
On 08/03/2010 08:35 AM, Zohair wrote:
Dear All,
Have anybody tried that using USRP2 to received bursts of data rather than
countinous?
I have tried doing this as the the sampling rate is very high and I have a
several blocks (that are calculation intensive) in my flow graphs. I am not
really
I've solved the problem with my own app. My sample handler had an uninitialized
member and was sometimes finished before it started.
The test app from the previous thread still has the failing assertion, but that
might be a red herring.
-Marc
___
Di
On Tue, Aug 03, 2010 at 09:49:30AM +0200, Martin Braun wrote:
> On Mon, Aug 02, 2010 at 02:07:38PM -0700, Eric Blossom wrote:
> > On Mon, Aug 02, 2010 at 06:00:10PM +0200, Martin Braun wrote:
> > > Sorry for the double-post, we were having problems with our SMTP today.
> > >
> > > On Mon, Aug 02,
Hi all,
I am trying to run the examples given in tutorial,
"how-to-write-a-signal-processing-block". The $ ./configure is fine but $ make
yields the error below.
mahb...@ubuntu:~/Desktop/myblocks$ make
make all-recursive
make[1]: Entering directory `/home/mahboob/Desktop/myblocks'
Making all
You are seeing uncompensated DC offset. What is the actual power of the
tone?
Matt
On 08/03/2010 10:12 AM, George Nychis wrote:
I have a WBX, and I've noticed that no matter what I transmit, the WBX
always introduces a very narrow (but full-power) tone at the center of
my spectrum. When t
Hi All,
I am trying to install gnuradio-3.2.1 on Ubuntu-8.04 OS. There is no error
for configure, but there are errors when "make". libqwtplot3d-qt4 and
libqwtplot3d-qt4-dev have been installed. Can anyone tell me how to solve
it?
Thanks in advance,
Brook
=== Errors ===
/usr/include/qwt/qwt_aut
The power of the tone comes in to the spectrum analyzer at -55.6dBm
On Tue, Aug 3, 2010 at 12:04 PM, Matt Ettus wrote:
>
>
> You are seeing uncompensated DC offset. What is the actual power of the
> tone?
>
> Matt
>
>
> On 08/03/2010 10:12 AM, George Nychis wrote:
>
>> I have a WBX, and I've n
Yes, I am interested in multiple bursts so Iam using the NUM_SAMP_AND_DONE
repeatedly.
If I understood what you've said correctly, hte following code may be
working. I havent tried it because I'm at home but would be grateful if you
tell me what you think of the modified code below.
Regards.
The WBX can put out about 20dBm at 520 MHz. -55dBm would be 75dB below
the desired signal, which is quite a good amount of LO suppression. If
you need more, you'll need to actively calibrate the DC offset to null
it out.
Matt
On 08/03/2010 12:55 PM, George Nychis wrote:
The power of the
On Tue, Aug 03, 2010 at 09:49:30AM +0200, Martin Braun wrote:
> On Mon, Aug 02, 2010 at 02:07:38PM -0700, Eric Blossom wrote:
> > On Mon, Aug 02, 2010 at 06:00:10PM +0200, Martin Braun wrote:
> > > Sorry for the double-post, we were having problems with our SMTP today.
> > >
> > > On Mon, Aug 02,
Hi,
did anybody manage to get this combination working together?
Some say on this list, you need an USRP1 for programming the DBSRX
and that programming on the USRP2 would not work.
The instructions on the website tell us, the USRP2 needs the special
burning firmware to make this upgrade. Really
By modifying the FPGA you can get rid of the interpolators or
decimators. You can also turn off the interpolate-by-4 function of the
DAC itself if you want to, by modifying the settings of the DAC.
Matt
On 08/02/2010 01:34 PM, Jeffrey Lambert wrote:
Hello,
I am working on a similar projec
Hi All,
I also tried other version of gnuradio, such as gnuradio-3.1.2, 3.2.2, but I
got the same errors when "make". I just upgraded qwt-5.0.2 to qwt-5.2.1, but
no help. Any suggestion here?
Thanks,
Brook
Brook Lin wrote:
>
> Hi All,
>
> I am trying to install gnuradio-3.2.1 on Ubuntu-8.04
Unless you had a specific use in mind for the qt stuff, you probably
wont need it. I would just disable it in the configure, build, install.
-JOsh
On 08/03/2010 02:15 PM, Brook Lin wrote:
Hi All,
I also tried other version of gnuradio, such as gnuradio-3.1.2, 3.2.2, but I
got the same errors
On Aug 3, 2010, at 4:15 PM, Moeller wrote:
> did anybody manage to get this combination working together?
Yes, after updating the EEPROM (using the USRP2 firmware) and moving the
resister, this combination is working fine for us.
OS: Ubuntu 10.04
GNU Radio: 3.0.3
FPGA: u2_rev3-20100603.bin
F
Hi Jeff,
I read about another guy trying to implement something similar and
Jonathan Corgan advised using the USRP2 due to the ability to send and
receive on time as well as having extra FPGA space to implement any mods
to the system. I am however lost as to where to begin. I suppose the
software
Hi ,
I am using USRP2. The newer version of GNU 3.3 contains timestamp code.
Couls you please answer my following querries.
1. What do you exactly mean by timestamp. Does it mean it will output the 64
bit timer value with each sample. What is the command on the host side to
see these timestamps.
Hi,
can someone guide me a little here please. I have a complex signal S(n) that
I multiply with a sequence P(n) of length N (the sequence consists of {-1,1}
). I pass the product into a Costas Loop to track the carrier. Btw, the
complex_input signal a spread signal spread using the sequence P(n) a
Hello,
I tried to follow the instruction for airprobe from
http://srlabs.de/uncategorized/airprobe-how-to, but following error occurred.
$ ./go_usrp2.sh vf_call6_a725_d174_g5_Kc1EF00BAB3BAC7002.cfile 174 0B > vf_call6
Traceback (most recent call last):
File "./gsm_receive100.py", line 12, in
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