The message size is limited by the packet framer and deframer, which is
modified from the packet framer/deframer found in GNU Radio. I believe
that the limit is 4096 bytes. However, the laws of practical wireless
comms may limit the system to smaller packet sizes. The more bits you
have, the mor
The image I sent is not my model. My model was attached to the email. Have
you seen it?
The image is an example I saw and I noted it's diferent from my.
My model WBFM_transmitter_Bruno.grc shows a ''UHD: USRP Sink''. In the
example http://www.dl8rds.de/index.php/Datei:GnuRadio_USRP2_FM_TRX.jpg,
Hello
I am trying to send low rate data through pre-cog simple trx
example. I have difficulty understanding the function of the heart beat
block. If I decrease the rate (period) of the heart beat block, I will be
able to send more messages. Which means more data.
Does any one know how much
Once again, the National Science Foundation (NSF) is providing us with
funding to help students travel to and from the conference. The
application form to submit for funding is now live on the conference
website:
www.trondeau.com/grcon13
See either the link on the left-hand side or scroll to the
Hi Adeel, all,
thank you again for your reply.
The structure of my receiver is following:
/---> filter ---> quadrature demod > threshold
detector ---> clock synchronization ---> correlate ac ---> deframer
usrp source
/
/
\
/
\---> rms ---> 10 log
--
On Thu, Jul 18, 2013 at 1:36 PM, Tom Rondeau wrote:
> To watch the dev call live, follow this link:
>
> http://www.youtube.com/watch?v=Iyxv4H6QSwE
>
> Tom
>
This is the latest and greatest feed:
http://www.youtube.com/watch?v=Uk2_M_w0Tnc
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To watch the dev call live, follow this link:
http://www.youtube.com/watch?v=Iyxv4H6QSwE
Tom
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July's developers call will be starting in a few minutes. Make sure
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installed, and can find your way over to the GNU Radio group's page.
This is my first time doing this without Martin, so setup could be a
bit sloppy. If all works
The question should be stated more like: Does someone have a "QT-2D mesh plot"
block that I can use? If so, then I can stay in C++/Python/GRC and not have to
export the data to Matlab. While I would want to run it faster, right now, an
update every 2 seconds or so is acceptable. 1) I 'm laz
>>For BPSK, not using differential, is there any way to keep track of the
rotating so as to understand exactly what happened to each bit? Only after
understanding what happens to each bit in a single series of data, I can
work on how to joint them correctly.
Other than differential decoding, anoth
Nemanja,
>>The problem that I have now is how to ensure that samples from
demodulator chain and samples from RSSi calculator come in the same time to
the symbol decision block. How can I tune this delay and is it
deterministic?
Yes, the delay is fix and can be determined by adding delay of all
"Fi
On 18/07/13 15:19, Tom Rondeau wrote:
Do you know what version of ICE is installed on your system? GNU Radio
explicitly looks for version 3.4, so if you're using 3.5 it won't work
by default. I've tested and compiled against 3.5, though, so it's only
the cmake FindICE script that's the problem.
I haven't seen that before. Not sure if this is the problem, but what
happens if you put a throttle on the ourput of the file source and set it
to some unreasonably low rate?
Also, are you running gnuradio 3.6.5?
-John
On Thu, Jul 18, 2013 at 8:40 AM, GNU radio wrote:
> Hello
>
> I am using
Hello
I am using the Pre-cog library for sending a simple data file from one usrp
N210 to another USRP N210. I have replaced the TCP Block with a file source
and a stream to blob block in the GRC.
When I disable the ARQ, I get the following error.
Uhandler caught exception: in method
'gr_block_gw
just to add this: In scope sink signals looks pretty alligned, but when I
print RSSI value for every bit they don't match to waveform, so I suppose
(and hope) that comes from the way how scope sink works.
On Thu, Jul 18, 2013 at 5:05 PM, Nemanja Savic wrote:
> Hi,
>
> thank you Adeel for your a
On Fri, Jul 12, 2013 at 2:31 PM, Yasmeen, Aneela
wrote:
> Hi,
>
> I have just upgraded my GNU Radio version from 3.6.5 to 3.7. I am getting
> trouble in finding the Sphinx manual for documentation of GRC blocks e.g. I
> cannot find the genindex.html file in my system. Am I missing something?
>
> A
Hi,
thank you Adeel for your answer. I implemented almost the same approach
yesterday. I bring signal from USRP through rms and log calculator directly
to the block for sampling symbol value. On every symbol I read RSSI and
send that value forward. As soon as I detect premble i start calculating
R
On Sun, Jul 14, 2013 at 8:27 PM, Bruno Cardoso wrote:
> Hello guys,
>
>
> I did the FM receiver (WBFM) based on the link bellow. It's working good. I
> can tune the local FM stations.
>
> http://www.youtube.com/watch?v=KWeY2yqwVA0
>
>
> 1) Now I'm trying to build the FM transmitter. My model is at
Hi Nathan,
Thanks again for your reply!
You are right that I'm not using BPSK instead of DBPSK. Because I'm working on
jointly decoding two series of data. Since DBPSK depends on the previous bit of
the data, I don't know if I joint the two series how will the differential
decoding works.
For
On Wed, Jul 17, 2013 at 12:49 PM, Barry Jackson wrote:
> Anyone know how to resolve this build failure in Mageia ?
> With no ice packages installed the build completes but without gr-ctrlport
> enabled. With ice and ice-devel installed the output is as below.
> Our ice binaries install to /usr/bin
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