Hello everybody,
I am building a FSK receiver to recover data on UHF. The bit rate of the data
is 9,6kbps sent at 437MHz. I put all the information of the flowgraph.
The data sent are a Stream of 0x55 or in binar « 1010 ». the medium between the
emitter and the receiver is coax cable.
Here is my
Hello everybody,
I am looking for a convolutional decoder for my ground station. I have found
the ccsds 27 which does the 1/2 code rate. Unfortunately I would like to have ¾
code rate.
I found the cc decoder definition with the FEC extended decoder. In
documentation, it is written that it canno
Hello everyone,
Builind a FSK tansiever, I would like to send burst data. All the fec and data
maniupation are made with custom block working with message.
After formating everything, I convert my data to Stream with « PDU to tagged
Stream » block and send it to «GFSK mod » block.
This last bl
-radio-with-message-lambda-blocks-and-eventstream/
On 28 March 2018 at 10:57, Jeff Long wrote:
Take a look at gr-eventstream and gr-*burst.
On 03/28/2018 04:14 AM, samuel verdon wrote:
Hello everyone,
Builind a FSK tansiever, I would like to send burst data. All the fec and data
maniupation are
eory).
> >
> > So, as I can't do that today, and probably not in the first two
> > weeks
> > of April, either, I'd propose we make a GREP out of that. Want to
> > champion that? That way, we'd document a desire to improve GNU
> > Radio at
> >
Hello,
I am blocked with a QPSK problem that I would like to share, and maybe you will
find my mistake.
I have build a QPSK transciever based the gnuradio tutorial for a project. The
Tx part is not done by myself modulation is already made, I just have to emit
the signal. Here is the spec :
Bi
Hi everyone,
I am builing a bpsk receiver, I can receive my signal, demodulate it, find the
marker of my packet (0x1acffc1d) and read it.
Everything looks fine excpet when I try to find the marker of the packet. I
have a delay that I don’t anderstand. I send a message every second and because
o
Hello,
I’m trying to command my usrp B200mini via its command port. I used the
documentation from here:
https://www.gnuradio.org/doc/doxygen/page_uhd.html
here is my command:
pmt::pmt_t command = pmt::make_dict();
command = pmt::dict_add(command, pmt::mp("gain"), pmt::mp(gain));
Hi Marcus and Martin,
Thank you for your help!
Do you now how I can follow the problem?
Or if is it already solved, how can I fix it?
Thanks a lot!
Samuel
De : Marcus Müller
Envoyé le :Wednesday, December 5, 2018 13:50
À : discuss-gnuradio@gnu.org; samuel verdon
Cc : Martin Braun
Objet :Re
at all look like
> > >
> > > const pmt::pmt_t gr::uhd::cmd_time_key()
> > > {
> > > static const pmt::pmt_t val
> > > = pmt::mp("time");
> > > return val;
> > > }
> > >
> > > just go i
t be done at run time.
> > >
> > > Somehow, it seems, that can sometimes lead to different notions of the
> > > same symbol.
> > >
> > > Solution: I was going to go in there, and instead of having these
> > > functions that all look like
> &g
Can someone redirect me to a documentation to use it correctly?
let me know if I have to give more information.
Thank you in advance for your help
--
Samuel Verdon
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