Hi faisal,
There already is a gnuradio block for spectrum analyzer. Have you seen
gr-fosphor?
You should really try using messages in your emails:(
BR,
Nikos
On Fri, Mar 22, 2019 at 2:09 PM faisal wrote:
> Hi
>
> Can you provide me how to save the datas which come from the threshold
> block
Hi
Can you provide me how to save the datas which come from the threshold
block and average block while running the grc and keep saving it during
peride of time using blocks in gnuradio without using coding python.
gt.grc
Description: Binary data
___
Hello everyone
Can you provide me how to save the datas which come from the threshold
block and average block while running the grc and keep saving it during
peride of time using blocks in gnuradio without using cosing python.
Thanks
gt.grc
Description: Binary data
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Hello Everyone
I'm already built a spectrum sensing block daigram in gnuradio companion
using sdr rtl and gnuradio so what i want is only to sense if there is
usage of spectrum at sertain time or not then i need an external blocks to
read the 0 and 1 thats comes from energy detecore and save it
I install gnu radio on raspbian
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Hi,
GNU Radio works fine on the RBPIv3 at lower / limited sample rates.
The satnogs project uses GNU Radio and the RBPIv3 as a reference design.
Regards,
Nate Temple
On Mon, Mar 4, 2019 at 2:06 PM faisal wrote:
> Hi my friend
> Please is anyone used gnuradio on raspberry pi 3
Hi my friend
Please is anyone used gnuradio on raspberry pi 3 sucssfully?
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Hi
I have final year project which is about spectrum sensing and my project
should use raspberry pi ,gnuradio and SDR. Actually i did not use raspberry
pi and gnuradio before i need help on how to integrate all of this
components togather.
___
So it works ok with the ettus radio, but I really want to use the
xb200/bladerf combo for the tx filtering capability. Also, The IF coming
out of the system under test can actually be anywhere between 10MHz and
70MHz. Looks like I'll be working on it more tomorrow.
On Mon, Oct 22, 2018, 10:43
Hello GNURadio friends,
I'm trying to build a simple repeater that receives a 70MHz IF signal over
a cable and retransmits it at around 200MHz. Essentially, I want to use an
SDR as a upconverter. What's the best way to do this? Do I just use a
sink and source block referring to the same SDR?
When i am using Protocol Parser connected to Async CRC32 in check mode i am
getting this error:
]: pmt_car: wrong_type : #f
How can i filter Protocol Parser's output to just throw out all #f-s?
PDU Filter just crashes with:
]: pmt_car: wrong_type : #f
Version GNU Radio 3.7.11 reproducable on
Hello Mir Lodro,
This is a known issue and there is a solution currently in review.
https://github.com/gnuradio/gnuradio/pull/1812
You can apply this change yourself to your local source code, change your
local C++ version by calling CMake manually, or wait until the solution is
merged into the
Hi All
i am installing GNU Radio on Linux 16.04, but it's not installing by saying
this file requires compiler and library support for ISO 2011 standard. This
can be done by issuing -std=c++11 or -std=gnu++11 when one has to run
single file. But here the build process is automated. I would be
Hi Marcus,
Sorry for leaving the title empty, that's the first time to post to a
mailing list. This is also the first time to reply, no sure if I replied
correctly.
I use 390.625k as the sampling rate because this is the lowest I can get
using the Ettus X310 without giving me a warning saying
Hi Rui,
so, what does your software /do/ to transmit samples? What is the
sampling rate you're working at?
U and L are, as you noted, usually caused by computational insufficiency
of the computing platform, but that might have many reasons, not only CPU.
Best regards,
Marcus
On 07/30/2017
Hi there,
I'm using USRP X310 and the host is Dell OptiPlex 7040. The application is
built using GNURadio companion 3.7.10.1
trying to transmit using both the daughter boards.
When two channels transmit the same file, the transmission can last for a
while before producing U and L and get stuck.
Hi all,
I dont know whether this is the right place to ask, so please tell if i am
wrong.
I am afraid that i am new to gnuradio, so i got a problem writing an OOT-module.
I used gr_modtool for the basic structure, wrote my code and did one of these
unit tests.
My test case worked so i
Thank you Marcus for your answer !
My BER and SNR are calculated and obtained using MPSK SNR Estimator Probe
and Error Rate blocks. I obtained two points, which rotate in the qt gui
constellation sink despite the BER and SNR have been obtained as expected.
Could you give me an explanation how it
Hi Rafik!
So, what's wrong with the BER and the SNR estimate?
Best regards,
Marcus
On 07/03/2017 11:29 PM, Rafik ZITOUNI wrote:
> Dear all,
>
> I translate the /gr-digital/examples/narrowband/digital_bert_tx.py and
> the /gr-digital/examples/narrowband/digital_bert_rx.py python source
>
Dear all,
I translate the /gr-digital/examples/narrowband/digital_bert_tx.py and the
/gr-digital/examples/narrowband/digital_bert_rx.py python source codes to
GRC flow graphs. The objective is to get more graphical possibilities with
a GRC. My flow graph gives a fine result of BER and SNR for
For Raj, and because, really, this comes up once in a while (and that's
once too many, because you can also google this stuff):
You can simply click on the unsubscribe button on the links at the end
of every email.
Other than that, this is a bog-normal mailing list, and has a list
unsubscribe
remove me from the discuss grp pls
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Hi Idress,
> There are some demo flowgraphs that should make clear how the toolbox works.
>
Also you should have a look at the slides and Bachelor theses in the
repository. They should give you an insight in theory and give some
references on how the blocks work.
Cheers,
Andrej
Hi Idress,
not knowing this module in particular, the examples folder is always a good
spot to make first steps.
There are some demo flowgraphs that should make clear how the toolbox works.
Best,
Sebastian
Am 24. August 2016 um 13:30:55, Idress Mughal (kenshiblind...@yahoo.com)
schrieb:
hi i
So a 'sudo ldconfig' fixed the problem.
On Tue, Apr 26, 2016 at 7:20 AM, Yile Ku wrote:
> I am running Ubuntu 14.04 and used pybombs to build gnuradio. Whenever I
> create a module and try and run it, I get the AttributeError shown at the
> bottom.
>
> Y-
>
>
>
I am running Ubuntu 14.04 and used pybombs to build gnuradio. Whenever I
create a module and try and run it, I get the AttributeError shown at the
bottom.
Y-
radio@ubuntu:~$ gr_modtool newmod tryit
Creating out-of-tree module in ./gr-tryit... Done.
Use 'gr_modtool add' to add a new block to
Yeah, in my haste I mistakenly clicked on the mailing list which has the same
icon as another of my contacts.
Sent from Windows Mail
From: Martin Braun
Sent: Thursday, March 17, 2016 10:20 PM
To: Henry Barton
Cc: discuss-gnuradio@gnu.org
Congrats!
... Although this
I studied enough for ch 1-2 and was able to get 100, 87, 100, and 95 on the 4
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Congrats!
... Although this was probably meant for someone else.
M
On 17 Mar 2016 16:19, "Henry Barton" wrote:
> I studied enough for ch 1-2 and was able to get 100, 87, 100, and 95 on
> the 4 assignments.
>
> ___
>
60MHz).
>> Examples what I have referred for CW is USRP echotimer _CW in (exaples
>> USRP) and simulator_CW (in simulators) these examples are from gr-radar
>> tool kit.
>>
>> regards
>> Vinay
>>
>> On Wed, Dec 16, 2015 at 10:04 AM, vingnu GNU <vingnu...@g
gr-radar tool kit.
>>
>> regards
>> Vinay
>>
>> On Wed, Dec 16, 2015 at 10:04 AM, vingnu GNU <vingnu...@gmail.com>
>> <vingnu...@gmail.com> wrote:
>>
>>
>>
>> -- Forwarded message --
>> From: Marcus Müller &
---
> From: Marcus Müller <marcus.muel...@ettus.com> <marcus.muel...@ettus.com>
> Date: Tue, Dec 15, 2015 at 4:49 PM
> Subject: Re: [Discuss-gnuradio] (no subject)
> To: vingnu GNU <vingnu...@gmail.com> <vingnu...@gmail.com>, Kevin McQuiggin
> <mcqui...@me.com&
.
>
> regards
> Vinay
>
> On Wed, Dec 16, 2015 at 10:04 AM, vingnu GNU <vingnu...@gmail.com> wrote:
>
>> -- Forwarded message --
>> From: Marcus Müller <marcus.muel...@ettus.com>
>> Date: Tue, Dec 15, 2015 at 4:49 PM
>> Subject:
Hi Vinay,
> Really sorry for images sizes
Don't be sorry! A few hundred kilobyte won't break the mailing list, and
it's always a good thing to illustrate your system well; I've spent much
(too much?) time in university labs, and believe me, there's nothing
more crucial about science and
015 at 4:49 PM
> Subject: Re: [Discuss-gnuradio] (no subject)
> To: vingnu GNU <vingnu...@gmail.com>, Kevin McQuiggin <mcqui...@me.com>,
> GNURadio Discussion List <discuss-gnuradio@gnu.org>
>
>
> Hi Vinay,
>
> Really sorry for images sizes
>
> Don't b
Hi Vingnu,
that's all nice, but what does "continuous wave" _mean_?
Best regards,
Marcus
On 14.12.2015 10:02, vingnu GNU wrote:
> Hi marcus,
>
> Its like this : generating continuous wave of signal which starts from 1GHz
> and it has to increase in steps of 250usec upto 2GHz.Then I wanted to
Hi Vingnu,
so you mean that on one frequency, you want to have a CW tone, and one
the next frequency another etc, but not continuous phase across frequencies.
** Do I understand that correctly? ** I'm confused because you then
mention "pulses", and that is a concept that is incompatible with CW
Hi Vingnu,
note that GNU Radio is software that handles sample streams, so yes, any
signal that you can imagine in a given bandwidth can be generated; the
question is whether you can realize that signal in the physical world.
So:
* do you just want to simulate the signal or really transmit that?
Hi every one,
Is this possible to generate step frequency continuous wave for frequency
range of 2GHz to 4GHz in GNU radio and step size in range of 250micro
seconds(Dwell time).
regards
Vingnu
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Hello all,
I am transmitting and receiving some pulses with basic daughterboards Tx
and Rx in the same USRP N200 at the same time, I'm working with GNU radio
blocks and I'm wondering if I send and receive these signals the
Daughterboards or USRP are synchronized automatically or there is some
Hi guys,
What does the sampling rate in this usrp block does?i'm talking about the
uhd:usrp source block. Is this the one that samples the IF from my TVRX2
daughterboard? Or is this the bandwidth that is displayed on the QT Sink?
Or is this the bandwidth that needs to be sample. As far as I know,
Hello,
I am using the blocks from gr-trellis (pccc encoder and pccc
decoder combo). can you tell to me how to check the output of pccc encoder
and pccc decoder. I want to see the output in bits. also how the operation
interleaver (block,666). which kind of interleaving is performing.
Hi Salija,
you asked the same question twice already, and you already got two
responses, one from me, and one from Achilleas, who is probably the best
source ever (because he was the author).
If you did not get our responses, you should check your mail configuration.
Please also make sure that
Hello all,
I am working with turbo encoder and decoder. is there any method to
check and verify the output of pccc encoder. I want to see the the output
of pccc encoder for corresponding binary input. is there any way to do this?
also any body can help me to explain interleaver operation in
HI,
I'm trying to build the costas loop block..but it showing the error
like this while I execute the make command:
/home/lekha/gr-digital/lib/cost_impl.cc: In constructor
‘gr::digital::cost_impl::cost_impl(float, int)’:
/home/lekha/gr-digital/lib/cost_impl.cc:47:15: error: type
Hi,
I'm trying to use the costas loop to get an timing estimate for 16QPSK.
What will be the value of error proportional constant K? How to choose the
K value?
thanks for your replay
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Hi all,
I'm trying to get the constellation of 16QAM. How to use constellation
receiver block for 16QAM? thanks in advance
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Hi..
the existed costas loop only considers the phase of the received signal
(for PSK techniques). But for QAM we have to consider both the magnitude
and phase of the received signal. I want to use the same costas loop for
QAM. where should I modify the C++ code? is that requires to modify the
Hi Vishwanatha,
Demodulation of phase-depending modulations requires some kind of
synchronization.
There's more approaches than costas loops to phase synchronization;
however, they're usually very specific to a channel/signal model and
can't be universally applied, or very inefficient, or very
sir, can we achieve 16 qam demodulation constellation without using costas
loop? if possible please send me the flow graph. thank you
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sir, what is the importance of the COSTOS loop in the QPSK mod/demod? This
block is working fine for 4-qpsk, 8-qpsk. But it does not works for QAM
modulation techniques. Is it needs to modify the cc code? if it is, where I
have to modify? plz mail me.
On Mon, Feb 23, 2015 at 4:28 AM, Vishwanatha H G
vishwanatha.1si12ec...@gmail.com wrote:
sir, I created a LPF block..when I execute make test command it shows
the error like this:
2: Test command: /bin/sh
/home/lekha/gr-filters/build/python/qa_lpf_test.sh
2: Test timeout computed to be:
sir, I created a LPF block..when I execute make test command it shows
the error like this:
2: Test command: /bin/sh
/home/lekha/gr-filters/build/python/qa_lpf_test.sh
2: Test timeout computed to be: 9.99988e+06
2: File /home/lekha/gr-filters/python/qa_lpf.py, line 28
2: def
On 02/18/2015 07:53 AM, Vishwanatha H G wrote:
sir,...I needed the py code of low pass filter. please any one mail me
Also, beside what Marcus said, I recommend reading this page to get the
most out of this mailing list:
http://gnuradio.org/redmine/projects/gnuradio/wiki/ReportingErrors
M
sir,...I needed the py code of low pass filter. please any one mail me
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Hey Marcus, and anyone else,
I tried that clean and then remaking, and nothing changed. Any other
suggestions?
Thanks,
Ryan Marlow
---
Hi Ryan,
I think this is a swig issue. I don't really
Hi GP,
ofdm_loopback.grc covers only the physical aspects of the transmission.
What you are describing is a flow control problem; you'd need to figure
out yourself how to make your data stream fit into the packets. A
typical way would be to send the length of your file, and then just fill
up the
When I ran the example ofdm_loopback.grc,
i used a file source to send data through the transmitter and checked the
output after the receiver in a file sink ;
i found that if the packet required to be sent is less than the defined
packet_length ; then the packet is not sent ?
how to send the last
Hi
I am trying to establish a simple link between two USRPs. My flow graph is
File_Source-PSK_MOD(BPSK)-USRP_sink
USRP_Source-PSK_Demod-pack_k_bits-File_Sink.
The received data is not matching with the source data. I removed the USRPs
and directly connected the PSK_MOD to PSK_DEMOD in flow gragh
hello SHRIHARSHA,
If your simulation looks good, try and see what's different about the
incoming signal on air as opposed to the simulation. Is the frequency offset
maybe too large? Is the received amplitude correct? Try mapping these into
your simulation and see where things start to fall apart.
I am confused about the terms full duplex and half duplex in context of
USRP...If i am using two antennas attached on the same channel on B210(one
on TX/RX and other on RX2).I am Rxing through one antenna and
retransmitting the signal with the other antenna..Am i operating on full
duplex or half
Full duplex implies simultaneous transmission and reception, almost always
on different frequencies. In the cellular world this is called frequency
division duplexing, or FDD. Full duplex on a USRP implies transmitting on
one connector (TX/RX) and receiving on the other (RX2).
Half duplex means
Thank you Matt!
On Wed, May 14, 2014 at 2:13 PM, Matt Ettus m...@ettus.com wrote:
Full duplex implies simultaneous transmission and reception, almost always
on different frequencies. In the cellular world this is called frequency
division duplexing, or FDD. Full duplex on a USRP implies
Hi Maheshkumar,
you are missing the Python ZMQ bindings.
Please install these, they should usually be available from your linux
distribution package repository.
Greetings,
Marcus
On 01/26/2014 07:45 AM, Maheshkumar Pandit wrote:
hello sir
here , i try to install air
hello sir
here , i try to install air modes but i face this kind of
error
mahesh@HP:~/gr-air-modes/build$ cmake ..
-- Build type not specified: defaulting to release.
Checking for GNU Radio Module: RUNTIME
* INCLUDES=/usr/local/include
*
Hello everyone,
Now I understand why most of the people get confused with the previous
topic I'm talking about. By radio I mean tactical radio for communication,
use in military communication. So my Question is, Is it possible to
integrate AM tx waveform with FM rx waveform as a working flowgraph
I am attempting to add a custom constellation class to be used with the
generic_mod_demod object for digital PSK. I have the code working as a
simple addition to the gnuradio source with a re-compilation, however I
would like to set this up similar to an Out Of Tree module (although it
isn't
--
Regards
Karan Talasila
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On Mon, Apr 1, 2013 at 7:26 PM, vamshi krishna dodla
vamshikrishna.do...@gmail.com wrote:
Sir
Thanks for your efforts and your reply, yeah i understand your concern
regarding the information lost (also effects of multipath and adjacent
channel interference, which is good to some extent) by
I have some questions regarding the coastas loop implemented, does it also
consider the snr estimate too? like a Maximum Likelihood loop(tanh* snr).
Also can you suggest me any interpolator for timing recovery and also
polyphase bandedge filters implementation. This would be really helpful to
On Mon, Apr 1, 2013 at 2:46 PM, vamshi krishna dodla
vamshikrishna.do...@gmail.com wrote:
I have some questions regarding the coastas loop implemented, does it also
consider the snr estimate too? like a Maximum Likelihood loop(tanh* snr).
Hi Vamshi,
No, the Costas loop does not account for
Dear Guys,I encounter one strange problem, I can use usrp to receive
signal but cannot transmit signal. My usrp is USRP2 and gnuradio version 3.2.2.
When running ursp2_siggen.py, it do not return any error but when I use a
spectrum analysis, it shows no signal is transmitted.
Which port is your antenna connected to? In SBX/WBX daughterboards, you can
only transmit through Tx/Rx. However, you can receive through both Tx/Rx
and Rx2.
This might not be related to your problem. But just checking.
Thanks,
Nazmul
On Thu, Dec 6, 2012 at 2:14 PM, zhengxiangwei
pleas i want to stop receiving alert massages on my mail what should i do ?
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Hi Rakesh,
In GNU Radio, FM demodulator is implemented digitally as
a = present_complex_sample * conj(previous_complex_samples)
out[current] = some gain * arctan ( imag(a), real(a) ); //demodulated FM
signal
So, you can also implement the same for demodulating FM signal in MATLAB.
Recorded FM
http://focusoneuropeantower.com/wp-content/themes/metro_10/body.html
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Earn Cash in Your Spare Time
__
You cant prove anythingon him, you know; everything will be quieted down
then, and hell walk inHucks money as easy as nothing. catriona aldon
Jhootay...
koi na btana esay 8th sem main hey or kisi or ki help b nai karta...:-P
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Hi All,
I want to ask a maybe simple question. I want to take the output of connection
of some blocks as a vector. But after connect() function i couldn't find where
it puts the output string. I also tried to use vector function. But it has a
few documentation.
Any help would be kindly
http://iublog.eu/petsl.html
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Hi,
1) I got my USRP 1 and RFX900 and 1800 daughterboards. The LED on the
USRP flashes when its powered on. I wanted to test the USRP but when I
ran the follwowing command
./usrp_probe or sudo ./usrp_probe
I got the following error
Traceback (most recent call last):
File ./usrp_probe, line
Smith -
Will you try running:
$ uhd_usrp_probe
and tell us what it reports? 'uhd_usrp_probe' is installed with UHD, not
GNURadio.
Cheers,
Ben
On Thu, Jan 12, 2012 at 3:53 AM, smith mark smith.mark1...@gmail.comwrote:
Hi,
1) I got my USRP 1 and RFX900 and 1800 daughterboards. The LED on
I didn't realize that you had sent this e-mail twice, and that Josh
answered you in the other thread.
Please ignore this thread, and we will carry on in the other one to prevent
two different support flows.
Cheers,
Ben
On Thu, Jan 12, 2012 at 10:06 AM, Ben Hilburn b...@ettus.com wrote:
Smith
hi all ,
I found something that maybe will help me solving my problem which is
tune_request_t struct
can anyone give me a hint about how can i use it
another question is that if i used the function
tune_request(target_freq,lo_offset) setting the policy to manual , in this
particular case
hi all,
in the example tx_bursts.cpp should i send end of burst packet or not and if i
didn't does this affect the transmission procedure
osama
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please help me about this error:
engrawais@ubuntu:~$ grc
(grc:6141): Gtk-WARNING **: Unable to locate theme engine in module_path:
pixmap,
(grc:6141): Gtk-WARNING **: Unable to locate theme engine in module_path:
pixmap,
(grc:6141): Gtk-WARNING **: Unable to locate theme engine in
Did you forget to export pyhonpath?
- Original Message -
From: Muhammad JUNAID
To: discuss-gnuradio@gnu.org
Sent: Saturday, November 05, 2011 22:21
Subject: [Discuss-gnuradio] (no subject)
please help me about this error:
engrawais@ubuntu:~$ grc
(grc:6141): Gtk
Oh look, someone already answered this:
http://comments.gmane.org/gmane.comp.hardware.usrp.e100/1960
On 11/05/2011 01:21 PM, Muhammad JUNAID wrote:
please help me about this error:
engrawais@ubuntu:~$ grc
(grc:6141): Gtk-WARNING **: Unable to locate theme engine in module_path:
pixmap,
On 11/05/2011 01:21 PM, Muhammad JUNAID wrote:
please help me about this error:
Basically your gnuradio installation is broken. Since you also have a
pretty old version. I recommend cleaning your system of the old gnuradio
and upgrading to something recent. GR has a 3.5 release candidate out
Message: 25
Date: Thu, 20 Oct 2011 11:24:04 -0400
From: Marcus D. Leech mle...@ripnet.com
To: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection
issue
Message-ID: 4ea03d14.3080...@ripnet.com
Content-Type: text/plain; charset=iso-8859-1; Format=flowed
On 20
ive been so busy lately I had finally hit rock bottom this was the ticket to my
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http://okmnm.web.fc2.com/MatthewGordon78.html everything seems to have worked
in my favor trust me this is no joke
Good way to make some extra income!! read it!
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hi list
I ve a very basic doubt in the output FFt plot of frequency
translation.if i do frequency translation i should get two peaks at
f1+f2 and f1-f2.i get this output when i keep my output at float. And
when i change the type to complex i am getting only f1+f2.can anybody
tell why is it so?and
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Hello,
I am trying to connect my USRP2 with simulink. I am struggling to find proper
communication between the two. I have downloaded the communication toolbox, DSP
toolbox, and signal processing toolbox. When I click on the tranmitter USRP2
block in simulink I am asked to provide the USRP2 IP
http://code.ettus.com/redmine/ettus/projects/uhd/wiki#Help-and-Support
On 05/24/2011 07:28 AM, Camden Mendiola wrote:
Hello,
I am trying to connect my USRP2 with simulink. I am struggling to
find proper communication between the two. I have downloaded the
communication toolbox, DSP toolbox,
Hi all,
I have been trying to generate (from a random 0-1 source) and send a
simple QAM signal from one side, receive and save as .dat file in
another.
Then I try to recover the signal I sent in Matlab/Octave. My method is
to first use read_complex_binary() to extract points, and sample 2000 of
It might be a $PYTHONPATH issue in that case... Have you set your PYTHONPATH
environment variable to include the path to where your GNU Radio modules are
installed? e.g. when I run env, the following line is included in the output
(I'm using a Mac):
Thanks for your suggestion Kunal, but it didn't not work. I
got an error
-ModuleError: cannot import name
my_block ___
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