Hi,For past one week I have been trying to run tunnel.py in ofdm folder. I have
successfully run tunnel.py in digital folder as well as benchmark_ofdm_*.py
with 0 packet loss.I have tried different set of parameter settings but to no
avail. If any body has successfully ran the tunnel.py in ofdm
Hi guys,
I am trying to write simple Pyhton applications by using the blocks in
the gnuradio. But i don't know which module should i import to use the
related function. Is there any document about it. On net i found that
"gr module" should be imported nearly for all applications but
sometimes it d
Hi guys,
To make the previous question more clear i want to give an example.
İ am trying to produce a cosine wave and send it via USRP. Then i used
the functions
gr.sig_source_c (sample_rate, gr.GR_COS_WAVE, 1, ampl)
dst=usrp.sink_c(which=0, interp_rate=400, nchan=1, mux=0x98,
fusb_block_siz
Dear Josh,
I have modified my setting as you explained in your previous reply but
unfortunately I still have an error.
I am using these settings (copied from top_block.py):
self.uhd_mimo_source_0 = uhd.mimo_source(4, "addr=192.168.10.11
192.168.20.11 192.168.30.11 192.168.40.11, recv_buff_siz
Hi,
Are there any components that can be used to implement a programmable
band-pass filter between the antenna and the LNA, of the RF front-end for an
SDR application.
I was wondering if there are an discrete components available that can be
programmed by I2C or SPI, that can be control
On Fri, Jul 9, 2010 at 11:30 AM, Elvis Dowson wrote:
> Hi,
> Are there any components that can be used to implement a programmable
> band-pass filter between the antenna and the LNA, of the RF front-end for an
> SDR application.
>
> I was wondering if there are an discrete components avail
3) set times next pps (synchronously)
gr_block_executor: source produced no
output. We're marking it DONE.
This tells me that the alignment buffer is not finding a common
timestamp among the 4 channels or one or more channels is not streaming
(perhaps a timestamp/setup issue). What does yo
Hi,
Has anyone tried to run Simulink USRP2 examples and succeeded to send or
receive signal to/from USRP2? The demos work for loopback but not when I
change the IP address input of the USRP2 (Simulink) block to my USRP2 actual
IP address which is default 192.168.10.2
I have installed libuhd, updat
Hi,
On Jul 9, 2010, at 7:53 PM, Brian Padalino wrote:
> You could try something like a switched filter bank as a preselector:
>
>http://www.spectrummicrowave.com/sfb.asp
I was thinking of a discrete SMT type component, which I can mount on a PCB
board, those are really big.
> That was so
I recently installed gnuradio and usrp on Ubuntu 10.04 (64-bit)
running on an Intel Core i7. My USRP has two FLEX900 daughterboards.
I would like to be able to run usrp_probe as I plan to replace these
daughterboards for some applications and would like to pull their
specs. However, I have not be
I recommend that you try the gnuradio-companion and learn from the
generated code. Also, it will drastically simplify the creation of usrp
source and sink block for you.
http://gnuradio.org/redmine/wiki/gnuradio/GNURadioCompanion
-Josh
On 07/09/2010 05:18 AM, mehmet kabasakal wrote:
Hi guys,
You should know that any filter you place in front of an LNA needs to
have a ridiculously low insertion loss in to not severely degrade the
noise figure if the LNA
It's likely that any switchable filter will have unacceptably high
insertion loss
A better approach is to use a first LNA wit
How much attenuation will I need in order to hook the Rx and Tx boards
(Basic-XX or LFxx) on the USRP directly together?
Thanks.
-William
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On 07/09/2010 10:23 AM, Jacinda Shelly wrote:
I recently installed gnuradio and usrp on Ubuntu 10.04 (64-bit)
running on an Intel Core i7. My USRP has two FLEX900 daughterboards.
I would like to be able to run usrp_probe as I plan to replace these
daughterboards for some applications and would
HI Marcus,
On Jul 9, 2010, at 9:36 PM, Marcus D. Leech wrote:
> You should know that any filter you place in front of an LNA needs to have a
> ridiculously low insertion loss in to not severely degrade the noise figure
> if the LNA
>
> It's likely that any switchable filter will have unaccepta
On 07/09/2010 10:36 AM, William Cox wrote:
How much attenuation will I need in order to hook the Rx and Tx boards
(Basic-XX or LFxx) on the USRP directly together?
Thanks.
-William
Basic and LF boards can be hooked TX to RX without problem. All others
need attenuation.
Matt
__
Hi, Josh,
Sorry for brothering! I have no idea on creating the flow graph by hand. Could
you show me the example for it?
Thanks!
Fangming
> Date: Tue, 22 Jun 2010 10:39:13 -0700
> From: j...@joshknows.com
> To: fangmin...@hotmail.com
> CC: discuss-gnuradio@gnu.org
> Subject: Re: grc 0.70 version
> can you post the warnings? and what version of gnuradio?
Sorry - I meant to include that. I'm using Version 3.3.1
(v3.3.1git-30-g278b6db3).
There are many multiples of these; this is a sample of the last five. I
get the exact same warning with grc, but that runs fine.
Warning: Block with key
Hi all,
yes, it works :-) This is what I did in OS X 10.6.4:
sudo port selfupdate
sudo port upgrade outdated
sudo port install python_select
sudo python_select python26
sudo port install mesa
sudo port clean --all wxWidgets-python
sudo port -d install py26-wxpython
sudo port install gnuradio
exp
Hi,
This question is addressed mostly to Jason Abele since I see he's been
working on this code recently.
db_base::_refclk_divisor currently throws a runtime_error when it is
called in the base class (not overridden by the daughterboard class).
How do you feel about making this method a pure virt
Hello,
I am new to GNU Radio. Currently I am considering to implement basic software
radio and signal processing on TI DSP environment, such as TI TMS320C674x and
C647x DSPs and the evaluation boards.
I know GNU radio are usually running on PC environments for Linux or Window OS,
but can it
It looks like you have a case of multiple gnuradio installs. Not sure
what else would cause this. And that would also explain the issue you
have, possibly a version mismatch between the installed script and the
library code.
I would clean all traces of gnuradio from /usr and /usr/local, uninst
You are talking about the xml format for a grc flowgraph (0.70 or
below)? Specifically, what is confusing you about it?
All I can say, there is a list of blocks, each block has an identifier
and a list of parameters. There is a list of connections that reference
a source and sink block and por
Hanks-
> I am new to GNU Radio. Currently I am considering to implement basic software
> radio and signal processing on TI DSP environment, such as TI TMS320C674x and
> C647x DSPs and the evaluation boards.
>
>
> I know GNU radio are usually running on PC environments for Linux or Window
> OS,
>
Thanks!
For the native, factory Linux running on their DSP cores, do you mean DSP/BIOS
real-time OS?
Hanks
发件人： Jeff Brower
收件人： Hanks
抄 送： discuss-gnuradio@gnu.org
发送日期： 2010/7/9 (周五) 6:41:05 下午
主 题： Re: [Discuss-gnuradio] Can GNU Radio run on TI DSP
Hanks-
> For the native, factory Linux running on their DSP cores,
> do you mean DSP/BIOS real-time OS?
No, I mean Linux. It's a big deal for TI -- they should have had a factory
Linux 10 years ago, but for whatever
reasons they were way late to join the crowd.
-Jeff
> __
Came across this link, and thought it was pretty cool, although not
very practical:
http://www.tombom.co.uk/blog/?p=144
Kunal
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That's really cool if Linux can run on TI multi-core DSP TMS320C6474!
Where can I get this factory Linux, I don't find it at TI's website. Should I
ask TI guys for it?
Thanks!
Hanks
发件人： Jeff Brower
收件人： Hanks
抄 送： discuss-gnuradio@gnu.org
发送日期： 2010
Hanks-
> That's really cool if Linux can run on TI multi-core DSP TMS320C6474!
>
> Where can I get this factory Linux, I don't find it at TI's website. Should I
> ask TI guys for it?
Several links are mentioned on this page:
http://newscenter.ti.com/Blogs/newsroom/archive/2010/04/27/texas-i
Hi,
Anything knows how to set up the parameters at Constellation sink in GRC,
eg., theta, Alpha, max frequency, Mu,
I am doing some basic tests in GRC+two USRP2, trying to see how the
constellation look like. But it does not show good for DBPSK/DQPSK.
especially at RX, after downconverting from h
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