Hi All,
Please accept my apologies for this unrelated message.
I will be starting a Ph.D. at the University of Birmingham this September, and
my general field of research will be RF Front-Ends for software defined radio.
Unfortunately, I do not have any scholarships or funding options as my
dep
Hi,
I recently updated my GNU Radio using the build-gnuraido script. Now
when I start gnuradio-companion, I get a warning saying:
Warning: Block key "gr_message_burst_source" not found when loading
category tree.
linux; GNU C++ version 4.6.3 20120306 (Red Hat 4.6.3-2); Boost_104700;
UHD_003.004.0
On Thu, Jul 26, 2012 at 2:46 PM, Frederick Lee wrote:
> Hi,
>
> I recently updated my GNU Radio using the build-gnuraido script. Now
> when I start gnuradio-companion, I get a warning saying:
>
> Warning: Block key "gr_message_burst_source" not found when loading
> category tree.
> linux; GNU C++
You said you replaced the channel model block with a USRP sink and source?
Are you trying to TX / RX using a loopback? If so, remember to use
attenuators so that you don't blow out your RX chain.
Also, the channel model block cannot simply be replaced with a source and
sink. There is a lot of o
Jo -
You'll need to provide more details. You are clearly dumping the data to a
file, but what is wrong with the samples? Have you plotted the samples in
your file and confirmed that it at least looks how you expect it to? Are
you getting the number of samples you expect? Is it the right data
On 26 Jul 2012 13:26, Joana Gonçalves wrote:
> Hello, I am trying
to use GRC to demodulate FSK signal. I use the USRP1 to receive data
from the radio and I can see when the radio is transmitting or not
trough FFT Sink. The problem is that I need to copy to a file what the
radio is sending and
I compiled GNURadio using the build script yesterday. In a previous
version of GNURadio, I believe that the Tagged File Sink was displayed
in GNURadio Companion under sinks. I couldn't find it there so I search
the build folder as well as my filesystem to find that I had no
gr_tagged_file_sink.
Sorry for the quick response, but I tried opening GRC using the terminal
and got the error below. Any ideas?
Error reading file
'/usr/local/share/gnuradio/grc/blocks/gr_tagged_file_sink.xml': failed
to load external entity
"/usr/local/share/gnuradio/grc/blocks/gr_tagged_file_sink.xml"
On Thu, Jul 26, 2012 at 2:08 PM, Daniel Labarowski
wrote:
> Sorry for the quick response, but I tried opening GRC using the terminal and
> got the error below. Any ideas?
>
>> Error reading file
>> '/usr/local/share/gnuradio/grc/blocks/gr_tagged_file_sink.xml': failed to
>> load external entit
On Thu, Jul 26, 2012 at 12:06 PM, Ben Hilburn wrote:
> You said you replaced the channel model block with a USRP sink and source?
> Are you trying to TX / RX using a loopback? If so, remember to use
> attenuators so that you don't blow out your RX chain.
When I said "replaced the channel model b
Hi Josh,
I am just wondering how the USRP performs the 8 bit mapping for I & Q
samples. The ADC & DAC have 12 - 14 bit precision, I think. When I select
the sc8 wire format, does the USRP divide the entire received signal range
into 2^8 sectors and uses one number to represent each of those?
Than
On 07/26/2012 05:09 PM, Nazmul Islam wrote:
> Hi Josh,
>
> I am just wondering how the USRP performs the 8 bit mapping for I & Q
> samples. The ADC & DAC have 12 - 14 bit precision, I think. When I select
> the sc8 wire format, does the USRP divide the entire received signal range
> into 2^8 sec
Thanks, Josh.
How can I specify the peak from GRC generated Python code? For example,
when I select the sc8 wire format, the following code is generated through
GRC.
stream_args=uhd.stream_args(
cpu_format="fc32",
otw_format="sc8",
channels=range(1)
Hello,
I am trying to create an OOK modulation and demodulation block. I want to
represent a 1 with a pulse (a square pulse) and 0 as nothing. Would
something like this be possible? I have tried modifying the bpsk.py file so
that I have constellation points of (1 +0j) and (0 + 0j). This gives me
Looks like the Tagged FIle SInk was not fixed in the new update. I'm fairly
certain that those new folders that appeared are the updated git pulls. The
hold roughly the same content as the other folders. I guess if you re-run
the script in the same directory, it will make a new folder for the updat
Dear All,
I am new to USRP. I want to develop FM transmission (Voice) using Matlab and
radio transmission through USRP. Can you suggest some programme.
With Thanks and Regards
Rakesh Kumar Gupta
Senior Group Manager
Communication Division - Defence
Rolta India Limited
Rolta Tower C, Rolta Te
Thank you for reading this.
I'm posting my question here because there is little traffic on the gqrx
forum and I haven't received a response. Perhaps someone who hasn't
visited the forum for awhile may be able to help.
These are the errors that Qt creator generates:
make: Entering directory
17 matches
Mail list logo
