This is a bug.
In file gr-digital/grc/digital_qa_demod.xml the line
gray_coded = $gray_coded
should be changed to
mod_code = $mod_code
On Wed, Jun 13, 2012 at 7:56 AM, jiajue ou wrote:
> Hi all,
>
> I’m using GRC and the simple flow graph(1) at receiver is as follows:
>
> Usrp source>
Hi all,
I'm using GRC and the simple flow graph(1) at receiver is as follows:
Usrp source>qam demod>file sink
It works fine at first. However, when I tried to execute another similar
flow graph(2) that was built before UPDATING GNURADIO from 3.5.0 to 3.6.0.
an error occurs:
Gener
On Wed, May 25, 2011 at 10:00 AM, Tom Rondeau wrote:
> On Tue, May 24, 2011 at 5:29 PM, Colby Boyer wrote:
>
>> On Tue, May 24, 2011 at 3:13 AM, Tom Rondeau
>> wrote:
>> > On Mon, May 23, 2011 at 10:37 PM, Ben Reynwar wrote:
>> >>
>> >> On Mon, May 23, 2011 at 12:09 PM, Josh Blum
>> wrote:
>> >
On Tue, May 24, 2011 at 5:29 PM, Colby Boyer wrote:
> On Tue, May 24, 2011 at 3:13 AM, Tom Rondeau
> wrote:
> > On Mon, May 23, 2011 at 10:37 PM, Ben Reynwar wrote:
> >>
> >> On Mon, May 23, 2011 at 12:09 PM, Josh Blum wrote:
> >> >
> >> >
> >> > On 05/23/2011 03:29 AM, Vlad Stoianovici wrote:
On Tue, May 24, 2011 at 3:13 AM, Tom Rondeau wrote:
> On Mon, May 23, 2011 at 10:37 PM, Ben Reynwar wrote:
>>
>> On Mon, May 23, 2011 at 12:09 PM, Josh Blum wrote:
>> >
>> >
>> > On 05/23/2011 03:29 AM, Vlad Stoianovici wrote:
>> >>
>> >> Dear Marcus and Bob,
>> >> I did understand that the bloc
On Mon, May 23, 2011 at 10:37 PM, Ben Reynwar wrote:
> On Mon, May 23, 2011 at 12:09 PM, Josh Blum wrote:
> >
> >
> > On 05/23/2011 03:29 AM, Vlad Stoianovici wrote:
> >>
> >> Dear Marcus and Bob,
> >> I did understand that the block was hollow, but this thread is kindda
> old,
> >> so I thought
On Mon, May 23, 2011 at 12:09 PM, Josh Blum wrote:
>
>
> On 05/23/2011 03:29 AM, Vlad Stoianovici wrote:
>>
>> Dear Marcus and Bob,
>> I did understand that the block was hollow, but this thread is kindda old,
>> so I thought that in the mean time maybe someone implemented the code and
>> function
On 05/23/2011 03:29 AM, Vlad Stoianovici wrote:
>
> Dear Marcus and Bob,
> I did understand that the block was hollow, but this thread is kindda old,
> so I thought that in the mean time maybe someone implemented the code and
> functionality you are referring to.
> I'm using GRC, but I don't hav
Dear Marcus and Bob,
I did understand that the block was hollow, but this thread is kindda old,
so I thought that in the mean time maybe someone implemented the code and
functionality you are referring to.
I'm using GRC, but I don't have time to start learning python with the sole
purpose of being
On 19/05/2011 1:21 PM, Robert McGwier wrote:
Vlad
It is apparent to me that you did not understand Josh's explanation.
Possibly he was not forceful enough. ;-).
This is not an error. It is the mathematical consequence of doing QAM
with rotational symmetries. YOU MUST provide your OWN sync
Wouldn't one normally use differential encoding to avoid this problem?
Maybe I'm missing something important.
Ben
On Thu, May 19, 2011 at 12:21 PM, Robert McGwier wrote:
> Vlad
> It is apparent to me that you did not understand Josh's explanation.
> Possibly he was not forceful enough. ;-).
> T
Vlad
It is apparent to me that you did not understand Josh's explanation.
Possibly he was not forceful enough. ;-).
This is not an error. It is the mathematical consequence of doing QAM with
rotational symmetries. YOU MUST provide your OWN synchronization to remove
the phase ambiguity. It is
Dear list and Josh,
I'm still getting this error when using the QAM Demod block (qamX_demod is
not connected internally).
Are there any new developments concerning these blocks?
Vlad.
Josh Blum-2 wrote:
>
> Well, when you receive a qam signal, and lock to it, you still have some
> unknown ph
udadidd wrote:
Hi Josh
I am trying to implement this qam8_demod()
I did not follow this statement that u have mentioned in one of ur previous
mails "you just have to run a packet receiver on each different phase
orientation of the constellation"
Can u plz explain me the same?
I have an underst
Hi Josh
I am trying to implement this qam8_demod()
I did not follow this statement that u have mentioned in one of ur previous
mails "you just have to run a packet receiver on each different phase
orientation of the constellation"
Can u plz explain me the same?
I have an understanding that the de
I noticed that the QAM demod is not in the 3.2 releasedo you know when
it will be included? Also, on the BPSK challenge/award thread, Rene said
Someone has to invent it. Most of the blocks are there in the d8psk
demodulator, you just have to run a packet receiver on each different
phas
Josh,
I noticed that the QAM demod is not in the 3.2 releasedo you know when
it will be included? Also, on the BPSK challenge/award thread, Rene said
that there was a 99.9% GRC soultiondo you happen to know about this
solution and if so, can you share it with me?
Thanks,
Jody
On Tue, Ma
Its no bug in GRC. It seems the qam8 demodulator is empty:
http://gnuradio.org/trac/browser/gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl/qam8.py#L180
w w wrote:
Greetings,
I'm getting the following error in GRC:Runtime error: hierarchical block
'qam8_demod' input 0 is not conn
Greetings,
I'm getting the following error in GRC:Runtime error: hierarchical block
'qam8_demod' input 0 is not connected internally'
Any Suggestions?
Cheers,
Jody
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