Below is a short GNU Radio pipeline. Its purpose is to write an impulse
response to a character device node representing an FPGA (which contains a
4-coefficient lowpass filter), read the FPGA's output, and store said output
in a file.
#!/usr/bin/env python
from gnuradio import gr, gru, eng_nota
Bill Stevenson wrote:
Hi,
We did the outdoor testing today to find out the relationship between
RSSI and Distance and the relationship between RSSI and PDR with USRP
and GNURadio. Mistakenly, the number of samples per symbol at the TX
side was set to 4 and the number of samples per symbol at
Hi,
We did the outdoor testing today to find out the relationship between RSSI and
Distance and the relationship between RSSI and PDR with USRP and GNURadio.
Mistakenly, the number of samples per symbol at the TX side was set to 4 and
the number of samples per symbol at the RX side was set to 2
hi,
when i try connecting usrp and then run some examples i always get this
import error, I have attached the error log below. I have installed
gnuradio 3.1.3 on ubuntu 8.04 and have python 2.5 . i tried finding abt
this error but didnt get anything similar. please help.
Error log:
r...@warrior
hi ,
when i try connecting usrp and then run some examples i always get this import
error, I have attached the error log below. I have installed gnuradio 3.1.3 on
ubuntu 8.04 and have python 2.5 . i tried finding abt this error but didnt get
anything similar. please help.
r...@warrior-laptop:
I had the same problem when I started building the trunk versions for the
USRP2 on my Fedora 7 machine.
I'm not sure if there is a more elegant solution, but I only had success
after removing Fedora's GSL package, downloading/building/installing GSL
1.10, and specifying the "PKG_CONFIG_PATH=/usr
I was helping someone on IRC today and it seems the configure script
doesn't explicitly tell which version of GSL is required - but just
says it's not there.
Here is where (I think?) the message originates from:
http://gnuradio.org/trac/browser/gnuradio/trunk/config/grc_gnuradio_core.m4#L43
Ah, but then I added the outputs to my makefile and now it works. Thanks
for the help!
On Thu, Mar 5, 2009 at 2:52 PM, Mike Leferman
wrote:
> I ran those commands and those are the outputs I got.
>
>
> On Thu, Mar 5, 2009 at 1:09 PM, Eric Blossom wrote:
>
>> On Thu, Mar 05, 2009 at 12:47:24PM -
On Thu, Mar 05, 2009 at 02:52:36PM -0500, Mike Leferman wrote:
> I ran those commands and those are the outputs I got.
It sounds like you're building your own code outside of our
framework. Are you passing all of those flags to g++ when you're
compiling and linking?
Did you do a
$ sudo ldcon
I ran those commands and those are the outputs I got.
On Thu, Mar 5, 2009 at 1:09 PM, Eric Blossom wrote:
> On Thu, Mar 05, 2009 at 12:47:24PM -0500, Mike Leferman wrote:
> > I'm using Ubuntu 8.10, and /usr/local/lib is in my ld.so.conf. Does
> > ldconfig just update ld.so.conf? My program find
Matt
Sorry to bother. Please tell me why I lose 6dB when measuring the
signal at pins 17 and 18? I have the RF transformer from Minicircuits
that is supposed to match the 200ohm output of the TVRX to a 50ohm so
that I can measure it on a spectrum analyser. Because it is matched,
I should not ha
On Thu, Mar 05, 2009 at 05:37:00PM +0100, Dimitris Symeonidis wrote:
> Hi List,
> I was reading through the dbpsk.py block in blks2impl, and found
> something that doesn't seem to make much sense (to me).
> Lines 272-273 read:
> rot = 1
> rotated_const = map(lambda pt: pt * rot, psk
On Thu, Mar 05, 2009 at 12:47:24PM -0500, Mike Leferman wrote:
> I'm using Ubuntu 8.10, and /usr/local/lib is in my ld.so.conf. Does
> ldconfig just update ld.so.conf? My program finds libusrp2 in the
> /usr/local/lib folder, so it should be able to find libgruel (which I'm
> guessing is the probl
On Thu, Mar 05, 2009 at 05:14:57AM -0800, George Roberts wrote:
> I'm trying to run OpenBTS using a USRP1 with an RFX900 transceiver board (to
> use as the transmitter) and a DBSRX board to use as a receiver.
> Now that I look at the OpenBTS code in depth (Transceiver/USRPDevice.cpp,
> specifically
On Thu, Mar 05, 2009 at 03:27:48PM +0100, Marek Mahut wrote:
> Hello,
>
> Johnathan Corgan wrote:
> > On Tue, 2009-02-03 at 13:00 -0800, John Gilmore wrote:
> >
> >> The F11 alpha is already frozen, it'll come out on Feb 5th. Feature
> >> freeze is March 3. Beta code and string freezes are Marc
To see the usrp simple source in doxygen, you will have to generate
doxygen for your gnuradio install (./configure --enable doxygen). The
documentation at gnuradio.org will not have it.
It may help you to look at
http://gnuradio.org/trac/browser/gnuradio/trunk/grc/src/grc_gnuradio/usrp/simple_
I'm using Ubuntu 8.10, and /usr/local/lib is in my ld.so.conf. Does
ldconfig just update ld.so.conf? My program finds libusrp2 in the
/usr/local/lib folder, so it should be able to find libgruel (which I'm
guessing is the problem?) Do I have to have my program link libgruel as
well? Is this fail
Hi List,
I was reading through the dbpsk.py block in blks2impl, and found
something that doesn't seem to make much sense (to me).
Lines 272-273 read:
rot = 1
rotated_const = map(lambda pt: pt * rot, psk.constellation[arity])
Is this not equivalent to:
rotated_const = psk.con
Hello,
Johnathan Corgan wrote:
> On Tue, 2009-02-03 at 13:00 -0800, John Gilmore wrote:
>
>> The F11 alpha is already frozen, it'll come out on Feb 5th. Feature
>> freeze is March 3. Beta code and string freezes are March 10. Is
>> there any chance that a GNU Radio release with Python 2.6 supp
I'm trying to run OpenBTS using a USRP1 with an RFX900 transceiver board (to
use as the transmitter) and a DBSRX board to use as a receiver.
Now that I look at the OpenBTS code in depth (Transceiver/USRPDevice.cpp,
specifically functions like USRPDevice::rx_setFreq()), I see that it only
supports t
I can not find the class
in the doxygen generated API.
Where to find it ?
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Hi All,
i noticed that there will be used in the most example some
special sources. Not the as in my program.
Do i have to use for example to adjust the adc_rate ?
Which one is the better ?
Do i need to visualize it in my Companion ?
Regards Markus
_
Hi List,
I am happy to say that we from the INT have managed to merge some of our
research with GNU Radio development and have released some code on
CGRAN. There are two new projects:
1) Spectral Estimation Toolbox
This project aims to enhance GNU Radio with 'proper' spectral estimation
routines
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