Jin Zhang wrote:
Hi,
I'm a new comer to usrp2. If we want to use a reference 10MHz clock
instead of 100MHz, is there any hardware modification needed?
Now I only change the fpga_master_clock_freq in usrp2_impl.cc from *freq
= 1L to *freq = 1000L. I tried to send digital signal in
Hi all, I am facing th following error while performing make check for gnu
radio 3.2:
make[4]: Leaving directory `/home/somya/gnuradio-3.2rc1/gnuradio-core/src/tests'
make[3]: Leaving directory `/home/somya/gnuradio-3.2rc1/gnuradio-core/src/tests'
Making check in python
make[3]: Entering director
Hi All, I had started my Master's Project in which i need to work towards
Channel Estimation using
GNU radio as Platform. Can any one please guide me and let me know about
any work been done in this field on GNU radio. Any help is really
appreciated.
Thanks & Regards,
Somya Ajmera
New Em
Thands for answering my question
http://www.nabble.com/Receiving-packets-using-2-daughterboads-in-2-framer-sink-didn%27t-work-correctly.-tp22658504p22672600.html
Sent from the GnuRadio mailing list archive at Nabble.com.
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optfir.low_pass() returns the coefficients for the desired filter, use the
python len() method to get the number of taps.
Kieran
On Tue, Mar 24, 2009 at 11:08 AM, Francesco B. wrote:
>
> Is there any way to determine the order of the filter that
> optfir.low_pass()
> is generating in any given
hi everybody..
i want to do a project on GNU RADIO based RFID reader .
i need information about any advancement has been done in this field and
what are the paths alongwith advancement is required.
Regards,
Harshal Jadhav
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Discuss-gnuradio mailing li
Is there any way to determine the order of the filter that optfir.low_pass()
is generating in any given case? It works properly, but knowing the order
would be beneficial to my group's documentation.
--
View this message in context:
http://www.nabble.com/Brief-question-involving-optfir.low_pass%
Doing this presents another problem. When I run "make" I get an error that
indicates that "PYTHON" is undefined in my Makefile.am (line 56).
This is because the aclocal.m4 file generated by just running ./configure
after removing the old aclocal.m4 file does not contain this the
AM_PATH_PYTHON(..
On Mon, Mar 23, 2009 at 10:44:21AM -0700, Eric Blossom wrote:
> On Mon, Mar 23, 2009 at 12:58:17PM -0400, Erich Stuntebeck wrote:
> > The daughterboard gain was set to the mid-point.
> >
> > I don't have the range of the time domain samples as I did the FFT
> > processing in real-time and discard
Hello all,
We are looking for a student or recent graduate who is familiar with
GNU Radio and the USRP for a summer internship at the Naval Research
Laboratory in Washington DC. We will be prototyping a unique multi-user
communication system.
If anyone is interested, shoot me an email with your
Hi,
I posted my question a couple of days ago but could not get any response,
probably because it was an over-datailed mail. Here, I am just posting a part
of it,
Is there any problem if I do call benchmark_rx.py and benchmark_tx.py with
following command line arguments?
$ python ./benchmark
Paul Mathews schrieb:
See 'usrp_am_mw_rcv.py' for an example. Look for the code relating to these
lines in particular:
if self.use_IF:
# Turn If to baseband and filter.
self.chan_filt = gr.freq_xlating_fir_filter_ccf (chanfilt_decim,
chan_filt_coeffs, self.IF_freq, us
Paul Mathews schrieb:
See 'usrp_am_mw_rcv.py' for an example. Look for the code relating to these
lines in particular:
if self.use_IF:
# Turn If to baseband and filter.
self.chan_filt = gr.freq_xlating_fir_filter_ccf (chanfilt_decim,
chan_filt_coeffs, self.IF_freq, us
On Mon, Mar 23, 2009 at 12:58:17PM -0400, Erich Stuntebeck wrote:
> The daughterboard gain was set to the mid-point.
>
> I don't have the range of the time domain samples as I did the FFT
> processing in real-time and discarded the raw data. The data was
> collected using a script I wrote to li
On Mon, Mar 23, 2009 at 08:00:52AM -0700, kaleem ahmad wrote:
>
> Hi,
>
> I have one more confusion about this sampling rate of USRP.
>
> At FPGA level it is 64MSps and when we decimate (D = 4...256), the sampling
> rate is reduced to 64MSps/D. Now I am confused that if the actual sampling
> ra
On Mon, Mar 23, 2009 at 04:39:14AM -0700, Ling Huang wrote:
>
> Hi, I have posted my question a few days ago, but no one answer my question.
> Maybe I didn't make my question clear. If there are any puzzle of my
> statements, please let me know.
>
> Here is my staff,
> I use rfx400 and rfx2400 mu
See 'usrp_am_mw_rcv.py' for an example. Look for the code relating to these
lines in particular:
if self.use_IF:
# Turn If to baseband and filter.
self.chan_filt = gr.freq_xlating_fir_filter_ccf (chanfilt_decim,
chan_filt_coeffs, self.IF_freq, usrp_rate)
Paul Mathews
Martin Braun schrieb:
On Mon, Mar 23, 2009 at 12:42:04PM +, feldmaus wrote:
Hi All,
i only want to say,it would be nice to have a clearer and
more comprehensive gnuradio python modules documentation with
examples.
This would solve many basic problems !
Hi Markus,
as explained in
http:/
On Mon, Mar 23, 2009 at 11:04 AM, kaleem ahmad wrote:
>
> Thanks Brian,
>
> By cycle time I mean that a transmitter (e.g. FSK, ZigBee or any other) is
> transmitting something (I am not interested what is being transmitted) after
> fixed time intervals let say 50ms. Now this transmitter will conti
Thanks Brian,
By cycle time I mean that a transmitter (e.g. FSK, ZigBee or any other) is
transmitting something (I am not interested what is being transmitted) after
fixed time intervals let say 50ms. Now this transmitter will continue
transmitting data after every 50ms. This 50ms is the cycle ti
Hi,
I have one more confusion about this sampling rate of USRP.
At FPGA level it is 64MSps and when we decimate (D = 4...256), the sampling
rate is reduced to 64MSps/D. Now I am confused that if the actual sampling
rate of USRP is changed from 64MSps to the new decimated sampling rate or
the US
On Mon, Mar 23, 2009 at 10:20 AM, kaleem ahmad wrote:
>
> Thanks for all these replies,
>
> The problem is my investigation about cycle time is not restricted to FSK,
> I just gave the example of FSK system. I would like to calculate the cycle
> time of any system (ZigBee, FSK, CSS etc) present i
feldmaus wrote:
Hi All,
i played around with an frequency translating filter and noticed that
there is no possibilty to create some taps with or
in grc.
Or am I wrong ?
yes, read the wiki page.
http://gnuradio.org/trac/wiki/GNURadioCompanion
Regards Markus
__
On Mon, Mar 23, 2009 at 12:42:04PM +, feldmaus wrote:
> Hi All,
>
> i only want to say,it would be nice to have a clearer and
> more comprehensive gnuradio python modules documentation with
> examples.
>
> This would solve many basic problems !
>
Hi Markus,
as explained in
http://gnuradio.
Thanks for all these replies,
The problem is my investigation about cycle time is not restricted to FSK,
I just gave the example of FSK system. I would like to calculate the cycle
time of any system (ZigBee, FSK, CSS etc) present in the area. My target is
to sense as much systems as possible and
Hi All,
i tried out to delete some antialiasing and the middle signal
of the FFT-Plot. Therefor i use this filter:
### VARIABLE ###
#At adc_rate=64MS/s and decim=64 we get an usrp_rate of 1 MS/s
self.decim=64
self.usrp_rate=1e6
### FILTER ###
self.firdes_filt_coeffs = gr.firdes.low_pass(1,
Hi All,
i only want to say,it would be nice to have a clearer and
more comprehensive gnuradio python modules documentation with
examples.
This would solve many basic problems !
The documentation at,
https://radioware.nd.edu/documentation/a-dictionary-of-the-gnu-radio-blocks
seems to b a good beg
Hi, I have posted my question a few days ago, but no one answer my question.
Maybe I didn't make my question clear. If there are any puzzle of my
statements, please let me know.
Here is my staff,
I use rfx400 and rfx2400 multi daughterboads on one USRP to receive or
transmit at the same time.I mo
Hi,
I am new to gnuradio and trying to understand how gr.message_sink and
gr.message_source work. I want to convert a byte stream (read from a file)
into a message of 50 bytes and store it in a queue. Then i want to retrieve
that message, convert it back to byte stream and write it to another file
Johnathan Corgan wrote:
> On Tue, Mar 17, 2009 at 5:26 AM, dbeken wrote:
>
>> last time I didn?t get a solution for my problem of interpolating and
>> decimating using a sinusoidal signal. Now i went even easier. I connected a
>> DC Power Supply (with 0.01A max limit) to my LFRX daughterboard. Th
Karthik wrote:
> On Tue, Mar 17, 2009 at 9:37 AM, Johnathan Corgan <
> jcor...@corganenterprises.com> wrote:
>
>> what
>> > can I do to see a signal?
>>
>> Make sure you don't have AC coupling turned on in your scope block.
>>
>> Johnathan
>>
>
> For receiving DC signals, you need to disable the
Hi All,
i played around with an frequency translating filter and noticed that
there is no possibilty to create some taps with or
in grc.
Or am I wrong ?
Regards Markus
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