[Discuss-gnuradio] make check errors in writing a new signal processing block

Hi While testing a new signal processing block, i made a new cube_ff block. changed my howto.i, Makefile, Makefile.am, Makefile.in files. I am stuck at this error. I have no clue how do i proceed further. Please let me know if any of you had faced this error before and got over it natasha-devroye

Re: [Discuss-gnuradio] QAM demod Error in GRC

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

[Discuss-gnuradio] bits_per_symbol and samples_per_symbol

Hi All these days i thought both are the same! But they are not. Does any one have any idea what is the difference between both of them? Thanks Udaya -- View this message in context: http://www.nabble.com/bits_per_symbol-and-samples_per_symbol-tp25931575p25931575.html Sent from the GnuRadio mai

[Discuss-gnuradio] QAM demodulator

Hi I am working on a project which bypasses USRP by Audio and i need to implement it on QAM. but i found QAM demodulator missing in the GNUradio?? Kindly let me know if any one implement this already? I have less time to implement this project!! Thanks a ton Udaya -- View this message in context

[Discuss-gnuradio] Why is an FFT filter used in benchmark_receiver?

Hi I found that an fft_filter is being used in the receiver! I did not understand its use though. Can anyone please help me in here? I am trying to transmit and receiver audio instead of usrp. How helpful is this filter in my case? Thanks Udaya -- View this message in context: http://www.nabbl

[Discuss-gnuradio] File_sink and file_source in benchmark rx and tx

Hi I tried file sinking the output of the packet_transmitter and file sourcing the same file into the packet_receiver. The receiver simply quits. What can be the reason? Is it because, it expects real_time data and not the "Whole bunch of data" in one go? or has it some thing to do with the queue

Re: [Discuss-gnuradio] Use of VERBOSE in C++ files

VERBOSE command. But when i run the python command, i do not see the output of C++ files. Kindly let me know if i need to do any thing else for viewing these? Eric Blossom wrote: > > On Tue, Sep 01, 2009 at 09:12:01PM -0700, udadidd wrote: >> >> Oh I am actually expecti

Re: [Discuss-gnuradio] Use of VERBOSE in C++ files

Oh I am actually expecting it to show data when i run the benchmark_rx.py Can you please let me know which code are you referring to? Udaya Eric Blossom wrote: > > On Tue, Sep 01, 2009 at 02:42:07PM -0700, udadidd wrote: >> >> I wanted to view the ac

[Discuss-gnuradio] Use of VERBOSE in C++ files

I wanted to view the access code, data in gr_correlate_access_code and gr_framer_sink_1 programs. I found the VERBOSE in both programs. I set this to 1. But i do not see any data. What is the purpose of this VERBOSE in that case? Is it only to view data while running C++ files? -- View this mes

[Discuss-gnuradio] Use of VERBOSE in C++ files

I wanted to view the access code, data in gr_correlate_access_code and gr_framer_sink_1 programs. I found the VERBOSE in both programs. I set this to 1. But i do not see any data. What is the purpose of this VERBOSE in that case? Is it only to view data while running C++ files? Thank you Udaya -

[Discuss-gnuradio] Benchmark_tx/rx with audio input and output

Hi I wanted to do the benchmark tx and rx with Audio instead of the USRP. I made all the changes to the transmitter and the receiver. The transmitter works fine but the receiver hangs!! I do the upconversion on transmitter after modulating, and transmit. and do the downconversion on receiver si

[Discuss-gnuradio] Benchmark_tx/rx does not work below 500k bitrate

hi I tried setting the bit rate of benchmark_tx/rx below 500k and the receiver senses no messages below this rate. Is there any specific reason why is it so? I use xcvr2450 boards. and i transmit at 5.1G. Thanks Udaya -- View this message in context: http://www.nabble.com/Benchmark_tx-rx-does-

[Discuss-gnuradio] view data before modulation in benchmark_tx

hi I want to view data before modulation and after in benchmark_tx.py, so that i can compare the data to the modulation waveform. Otherwise i have no clue which data and how is it modulated. I could see the waveforms after the modulation. but before that, the data comes as a data_in_a_queue from

[Discuss-gnuradio] Display the series of 1's and 0'a on Oscilloscope

I have a file which has set of 1's ad 0's like the one i am sending : packet.data http://www.nabble.com/file/p24950439/packet.data packet.data I want to see this data on the oscilloscope. I tried 1) reading this file into a file_source 2) connecting this to oscilloscope directly. But this doesnt

Re: [Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation

Sorry, Thats PORT B ALREADY in USE udadidd wrote: > > sure i can do that. > But my connections are like this. > > self.connect(module A, module B, file_sink.1) > self.connect(module A,module B, module C) > > self.connect (module C, module D, file_sink.2 ) > sel

Re: [Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation

connections, it says, the port C already in use!! So is there a way i can tap the data at these points? Eric Blossom wrote: > > On Tue, Aug 11, 2009 at 08:59:23AM -0700, udadidd wrote: >> >> hi >> i want to see the signals on the scope before and after modulation. but >&g

[Discuss-gnuradio] Using scope in benchmark_tx to see signals before and after modulation

hi i want to see the signals on the scope before and after modulation. but the transmit_path.py use hier_block2 and benchmark_tx use top_block. can any one kindly help on where should i go ahead and make changes? -- View this message in context: http://www.nabble.com/Is-it-possible-to-chang

Re: [Discuss-gnuradio] What happens when delete_head() is executed?

ource --> correlator --> framer_sink So if my queue is empty, where is the data that i am reading, going? udadidd wrote: > 2) Now i try to read this file back and unmake packets. But the code > doesnt > do any thing at msg.delete_head(). > delete_head() is a blocking function, which

Re: [Discuss-gnuradio] usrp: failed to find usrp [0]

I pulled Back the Power cable from the USRP First time it gave the errors! But i tried removing the connections and connecting back again! It worked Then!! But may i know wat are these print_dbs and dmesg and how do i Use them? Thanks for your time. Tom Rondeau wrote: > > udadidd

[Discuss-gnuradio] What happens when delete_head() is executed?

Hi 1) i used the same code as benchmark_tx.py to make packets and saved this in a file 2) Now i try to read this file back and unmake packets. But the code doesnt do any thing at msg.delete_head(). My code is as follows: class my_top_block(gr.top_block): def __init__(self,rx_callback):

[Discuss-gnuradio] What happens when delete_head() is executed?

Hi 1) i used the same code as benchmark_tx.py to make packets and saved this in a file 2) Now i try to read this file back and unmake packets. But the code doesnt do any thing at msg.delete_head(). My code is as follows: class my_top_block(gr.top_block): def __init__(self,rx_callback):

[Discuss-gnuradio] usrp: failed to find usrp [0]

Hi By mistake i have pulled out the connection of USRP while the benchmark_rx.py program was running. Now i get an Error : usrp: failed to find usrp[0] Traceback (most recent call last): File "benchmark_tx.py", line 137, in main() File "benchmark_tx.py", line 98, in main tb = my_top_

[Discuss-gnuradio] Using GRC

Hi I am using GRC, but i would like to add modules that i make and also hierarchical modules. How can i go ahead and add modules of my choice? -- View this message in context: http://www.nabble.com/Please-help-me-out-with-udp_sink-tp24605485p24630416.html Sent from the GnuRadio mailing list ar

[Discuss-gnuradio] Packetizer and Depacketizer

Am trying to make data(read from keyboard) into packets, save this into a file, and in another program, read this data, deframe it and display. I followed similar steps as in benchmark_rx and benchmark_tx. instead i removed modulator and demodulator. I alos avoided the use of usrp in between, ins

Re: [Discuss-gnuradio] blks2.mod, blks2.demod

io/blks2impl/pkt.py and /usr/local/lib/python2.x/site-packages/gnuradio/packet_utils.py files Eric Blossom wrote: > > On Mon, Jul 13, 2009 at 02:32:57PM -0700, udadidd wrote: >> >> I was trying to understand benchmark_tx and benchmark_rx files. I see >> blks2.mod

[Discuss-gnuradio] blks2.mod, blks2.demod

I was trying to understand benchmark_tx and benchmark_rx files. I see blks2.mod_pkts being used. and blks2 being imported from gnuradio 1) if i call "from gnuradio import blks2", where exactly are these files called from? 2) i do not see any mod_pkts() function in the blks2 directory. instead i fi

Re: [Discuss-gnuradio] Problem in executing GRC

Hi I figured out the error! In addition to the PYTHONPATH i had i needed to add the commands in this site: https://radioware.nd.edu/documentation/install-guides/mac-os-x/preliminaries#section-3 and it worked Udaya udadidd wrote: > > Hi > I have deleted al gnuradio/ files from /

Re: [Discuss-gnuradio] Problem in executing GRC

c", line 33, in from gnuradio.grc import VERSION ImportError: No module named grc Johnathan Corgan-2 wrote: > > On Sun, Jul 5, 2009 at 18:05, udadidd wrote: > >> Do i have to configure, make and make install? > > What may have happened here is fallout from a reorganiza

Re: [Discuss-gnuradio] Problem in executing GRC

again, is there a file? Remove that > > 3) Run sudo make install -C grc > > > udadidd wrote: >> a) I ran the command : "python -c ..." and it DOES NOT give any error! >> b) I do find a folder gnuradio in the path : >> "/opt/gnuradio/lib/python2.5/site

Re: [Discuss-gnuradio] Problem in executing GRC

gr" > > does it give an error? If so, python cannot find gnuradio. Is there a > folder called gnuradio in > /opt/local/lib/python2.5/site-packages:/opt/gnuradio/lib/python2.5/site-packages? > > > udadidd wrote: >> Hi >> I could install grc successfully... >&

[Discuss-gnuradio] Problem in executing GRC

Hi I could install grc successfully... But when i try to execute it, i get the error: Xlib: extension "RANDR" missing on display "/tmp/launch-zFqALC/:0". Traceback (most recent call last): File "/usr/local/bin/grc", line 33, in from gnuradio.grc.platforms.base.Constants import VERSION Im

[Discuss-gnuradio] High packet error and reception problems with XCVR 2450

Hi We bought 2 USRP boards very recently and it doesn't seem to work. We have daughter boards XCVR 2450 and vertical antennas (Black colored) VERT2450. We also have TVRX daughter board which works properly. We had been trying usrp_siggen.py, usrp_oscope.py on each of these. Also digital/benchmark