[Discuss-gnuradio] OFDM_TX_RX_OVER_TCP
Hi all, I tried to develop an OFDM transmitter and Recevier Using the OFDM Modulator and Demodulator blocks available in GnuRadio.v3.4.2 Since I haven't received my USRP, I decided to test it using the TCP. My PC Configuration: Intel Core2Duo E8500 @3.16GHz 4GB RAM, Fedora 16 , 64Bit. The OFDM configuration: BPSK,128FFT, 96Tones, sampling freq=2Mhz The problem that I face is that the transmitted file gets corrupted only for certain file sizes. I have attached a test result(pdf) of transmission of files with different sizes. I'm unable to figure out the issue. The attached images shows the flowgraphs of Transmitter and Reciever. I have also attached the python files. I http://old.nabble.com/file/p33763599/OFDM_TCP_TX.png ... http://old.nabble.com/file/p33763599/OFDM_TCP_RX.png http://old.nabble.com/file/p33763599/OFDM_TX.py OFDM_TX.py .. http://old.nabble.com/file/p33763599/OFDM_RX.py OFDM_RX.py http://old.nabble.com/file/p33763599/OFDM_Block_test_MAY_2012%2B-%2BBPSK128_2M.pdf OFDM_Block_test_MAY_2012+-+BPSK128_2M.pdf -- View this message in context: http://old.nabble.com/OFDM_TX_RX_OVER_TCP-tp33763599p33763599.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Uninstall GNU Radio 3.5.3 (installed with building-gnuradio script)
I have found the answer of my last question by myself: I configured OpenBTS new, changed the OpenBTS.sql and smqueue.sql files, did sqlite3 -init ./apps/OpenBTS.example.sql /etc/OpenBTS/OpenBTS.db sqlite3 -init smqueue/smqueue.example.sql /etc/OpenBTS/smqueue.db But now there is a new error: Starting the system... ALERT 3078318960 USRPDevice.cpp:545:setRxFreq: set RX: 1.7832e+09failed baseband freq: 1.78e+09 DDC freq: -3.2e+06 residual freq: 0.00298023 ALERT 3078318960 Transceiver.cpp:540:driveControl: RX failed to tune ALERT 3074639568 TRXManager.cpp:342:tune: RXTUNE failed with status 1 ALERT 3074639568 TRXManager.cpp:395:powerOn: POWERON failed with status 1 ALERT 3074639568 TRXManager.cpp:409:setPower: SETPOWER failed with status 1 ALERT 3074639568 TRXManager.cpp:409:setPower: SETPOWER failed with status 1 1336484679.264657 3074639568: Welcome to OpenBTS. Type help to see available commands. OpenBTS ALERT 3041119088 TRXManager.cpp:409:setPower: SETPOWER failed with status 1 ALERT 3065535344 TRXManager.cpp:86:clockHandler: TRX clock interface timed out, assuming TRX is dead. Aborted I am not sure if there is still a problem with gnu radio or it is just an error from OpenBTS. (The configuration in OpenBTS.config are right and the correct softlink is set so this shouldn't be the problem.) *lsusrp: * *Traceback (most recent call last): File /usr/bin/lsusrp, line 25, in module from gnuradio import usrp ImportError: cannot import name usrp* so it seems that there are still problems with gnuradio but i don't know how to locate them because I followed these guide: http://gnuradio.org/redmine/projects/gnuradio/wiki/OpenBTSBuildingAndRunning#Building-and-Installing ls -lR /dev/bus/usb | grep usrp: crw-rw 1 root usrp 189, 3 2012-05-09 08:38 004 so the USRP seems to be recognized. So should I install gnuradio for a third time or is the error another? Thanks in advance. Regards Ellen 2012/5/4 Ellen Apolinar ellen.apolinar...@googlemail.com Thanks a lot for your answers! Now there is still sn error when I want to start OpenBTS. Perhaps you know it. First I describe what I did: I deleted all components from gnuradio 3.5.3 and followed this for installing libusrp: http://gnuradio.org/redmine/projects/gnuradio/wiki/OpenBTSBuildingAndRunning#Building-dependencies I installed GNU Radio 3.3 from here: http://gnuradio.org/releases/gnuradio/ Before I continued: apt-get -y install libfontconfig1-dev libxrender-dev libpulse-dev swig g++ automake autoconf python-dev libfftw3-dev libcppunit-dev libboost-all-dev libusb-dev fort77 sdcc sdcc-libraries libsdl1.2-dev python-wxgtk2.8 git-core guile-1.8-dev libqt4-dev python-numpy ccache python-opengl libgsl0-dev python-cheetah python-lxml doxygen qt4-dev-tools libqwt5-qt4-dev libqwtplot3d-qt4-dev pyqt4-dev-tools python-qwt5-qt4 (I know that is a little bit too much but I wanted to be sure that everything is alright.:) Then: ./configure --disable-all-components --enable-usrp --enable-gruel # make softlinks for boost and usrp-files Perhaps a stupid question but should I do these steps again before starting OpenBTS? ./bootstrap ./configure make make install When without them I start OpenBTS: Starting the system... OpenBTS: GSMCommon.cpp:140: unsigned int GSM::uplinkFreqKHz(GSM::GSMBand, unsigned int): Assertion `(ARFCN511)(ARFCN886)' failed. Aborted But this is not the first time that this alert comes when I want to start OpenBTS and the USRP1 is on (with the correct clock). Thanks a lot for your answers and your help. Regards Ellen 2012/5/4 Martin Braun martin.br...@kit.edu On Fri, May 04, 2012 at 09:36:02AM +0200, Ellen Apolinar wrote: 1) Unfortunatelly I installed a version which is too new for working with OpenBTS so I want to uninstall it. make uninstall didn't work so I think I have to remove it manually. (Locate gnuradio and them remove all files.) But i'm not sure if that is the right way so it would be great if you can say me if I'm right or not. Hi Ellen, that's fine--just dive through /usr/local (or whatever your prefix is) and kill anything gnuradio-related. MB -- Karlsruhe Institute of Technology (KIT) Communications Engineering Lab (CEL) Dipl.-Ing. Martin Braun Research Associate Kaiserstraße 12 Building 05.01 76131 Karlsruhe Phone: +49 721 608-43790 Fax: +49 721 608-46071 www.cel.kit.edu KIT -- University of the State of Baden-Württemberg and National Laboratory of the Helmholtz Association ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Uninstall GNU Radio 3.5.3 (installed with building-gnuradio script)
Sorry for the hole E-Mail-spam... Now I think I fixed the error with lsusrp/GNU Radio. I write my steps how I solved the problems for the case that someboy will get the same problem: A soft link to the right directory python2.7/dist-packages/gnuradio/usrp was needed. After that I testet Python without errors: python from gnuradio import usrp lsusrp USRP 0 serial number 8R25XEU1 RX d'board A: Flex 1800 Rx MIMO B RX d'board B: Flex 1800 Rx MIMO B TX d'board A: Flex 1800 Tx MIMO B TX d'board B: Flex 1800 Tx MIMO B usrp: failed to find usrp[1] usrp: failed to find usrp[2] usrp: failed to find usrp[3] usrp: failed to find usrp[4] usrp: failed to find usrp[5] usrp: failed to find usrp[6] usrp: failed to find usrp[7] So I think the USRP is recognized and python and lsusrp are working correctly. So the one problem is the OpenBTS but I think that's not a topic for this mailinglist. Thank you for your help and your answers. Regards Ellen 2012/5/9 Ellen Apolinar ellen.apolinar...@googlemail.com I have found the answer of my last question by myself: I configured OpenBTS new, changed the OpenBTS.sql and smqueue.sql files, did sqlite3 -init ./apps/OpenBTS.example.sql /etc/OpenBTS/OpenBTS.db sqlite3 -init smqueue/smqueue.example.sql /etc/OpenBTS/smqueue.db But now there is a new error: Starting the system... ALERT 3078318960 USRPDevice.cpp:545:setRxFreq: set RX: 1.7832e+09failed baseband freq: 1.78e+09 DDC freq: -3.2e+06 residual freq: 0.00298023 ALERT 3078318960 Transceiver.cpp:540:driveControl: RX failed to tune ALERT 3074639568 TRXManager.cpp:342:tune: RXTUNE failed with status 1 ALERT 3074639568 TRXManager.cpp:395:powerOn: POWERON failed with status 1 ALERT 3074639568 TRXManager.cpp:409:setPower: SETPOWER failed with status 1 ALERT 3074639568 TRXManager.cpp:409:setPower: SETPOWER failed with status 1 1336484679.264657 3074639568: Welcome to OpenBTS. Type help to see available commands. OpenBTS ALERT 3041119088 TRXManager.cpp:409:setPower: SETPOWER failed with status 1 ALERT 3065535344 TRXManager.cpp:86:clockHandler: TRX clock interface timed out, assuming TRX is dead. Aborted I am not sure if there is still a problem with gnu radio or it is just an error from OpenBTS. (The configuration in OpenBTS.config are right and the correct softlink is set so this shouldn't be the problem.) lsusrp: Traceback (most recent call last): File /usr/bin/lsusrp, line 25, in module from gnuradio import usrp ImportError: cannot import name usrp so it seems that there are still problems with gnuradio but i don't know how to locate them because I followed these guide: http://gnuradio.org/redmine/projects/gnuradio/wiki/OpenBTSBuildingAndRunning#Building-and-Installing ls -lR /dev/bus/usb | grep usrp: crw-rw 1 root usrp 189, 3 2012-05-09 08:38 004 so the USRP seems to be recognized. So should I install gnuradio for a third time or is the error another? Thanks in advance. Regards Ellen 2012/5/4 Ellen Apolinar ellen.apolinar...@googlemail.com Thanks a lot for your answers! Now there is still sn error when I want to start OpenBTS. Perhaps you know it. First I describe what I did: I deleted all components from gnuradio 3.5.3 and followed this for installing libusrp: http://gnuradio.org/redmine/projects/gnuradio/wiki/OpenBTSBuildingAndRunning#Building-dependencies I installed GNU Radio 3.3 from here: http://gnuradio.org/releases/gnuradio/ Before I continued: apt-get -y install libfontconfig1-dev libxrender-dev libpulse-dev swig g++ automake autoconf python-dev libfftw3-dev libcppunit-dev libboost-all-dev libusb-dev fort77 sdcc sdcc-libraries libsdl1.2-dev python-wxgtk2.8 git-core guile-1.8-dev libqt4-dev python-numpy ccache python-opengl libgsl0-dev python-cheetah python-lxml doxygen qt4-dev-tools libqwt5-qt4-dev libqwtplot3d-qt4-dev pyqt4-dev-tools python-qwt5-qt4 (I know that is a little bit too much but I wanted to be sure that everything is alright.:) Then: ./configure --disable-all-components --enable-usrp --enable-gruel # make softlinks for boost and usrp-files Perhaps a stupid question but should I do these steps again before starting OpenBTS? ./bootstrap ./configure make make install When without them I start OpenBTS: Starting the system... OpenBTS: GSMCommon.cpp:140: unsigned int GSM::uplinkFreqKHz(GSM::GSMBand, unsigned int): Assertion `(ARFCN511)(ARFCN886)' failed. Aborted But this is not the first time that this alert comes when I want to start OpenBTS and the USRP1 is on (with the correct clock). Thanks a lot for your answers and your help. Regards Ellen 2012/5/4 Martin Braun martin.br...@kit.edu On Fri, May 04, 2012 at 09:36:02AM +0200, Ellen Apolinar wrote: 1) Unfortunatelly I installed a version which is too new for working with OpenBTS so I want to uninstall it. make uninstall didn't work so I think I have to remove
Re: [Discuss-gnuradio] Uninstall GNU Radio 3.5.3 (installed with building-gnuradio script)
Hey folks,
another problem which makes me lost:
I have read that usrp_fft.py has to work if I installed libusrp/GNU
Radio3.3 correctly and the USRP1 is connected with the right clock and the
computer.
But if I want to run usrp_fft.py I get:
Traceback (most recent call last):
File /usr/bin/usrp_fft.py, line 23, in module
from gnuradio import gr, gru
File /usr/local/lib/python2.7/dist-packages/gnuradio/gr/__init__.py,
line 43, in module
from gnuradio_core import *
File
/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core.py, line
23, in module
from gnuradio_core_runtime import *
File
/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core_runtime.py,
line 24, in module
_gnuradio_core_runtime = swig_import_helper()
File
/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core_runtime.py,
line 20, in swig_import_helper
_mod = imp.load_module('_gnuradio_core_runtime', fp, pathname,
description)
ImportError: libgruel-3.5.3git.so.0.0.0: cannot open shared object file:
No such file or directory
locate libgruel shows be:
/usr/lib/libgruel.la
/usr/lib/libgruel.so
/usr/lib/libgruel.so.0
/usr/lib/libgruel.so.0.0.0
/usr/share/doc/libgruel-dev
/usr/share/doc/libgruel0
/usr/share/doc/libgruel-dev/changelog.Debian.gz
/usr/share/doc/libgruel-dev/copyright
/usr/share/doc/libgruel0/changelog.Debian.gz
/usr/share/doc/libgruel0/copyright
/var/lib/dpkg/info/libgruel-dev.list
/var/lib/dpkg/info/libgruel-dev.md5sums
/var/lib/dpkg/info/libgruel0.list
/var/lib/dpkg/info/libgruel0.md5sums
/var/lib/dpkg/info/libgruel0.postinst
/var/lib/dpkg/info/libgruel0.postrm
/var/lib/dpkg/info/libgruel0.shlibs
So there is already libgruel installed but perhaps usrp_fft.py is searching
for the wrong version. Is it possible that I didn't delete all files from
the first installation of GNU Radio (3.5.3) before I installed GNu Radio
3.3?
So this means I have to delete all GNU Radio files again and to a new
installation?
I want to be sure if I have to do this before I delete all because perhaps
there is another solution.
Unfortunatelly Google can't help me so I need some help from you again.
Regards
Ellen
2012/5/9 Ellen Apolinar ellen.apolinar...@googlemail.com
Sorry for the hole E-Mail-spam...
Now I think I fixed the error with lsusrp/GNU Radio. I write my steps how
I solved the problems for the case that someboy will get the same problem:
A soft link to the right directory python2.7/dist-packages/gnuradio/usrp
was needed.
After that I testet Python without errors:
python
from gnuradio import usrp
lsusrp
USRP 0 serial number 8R25XEU1
RX d'board A: Flex 1800 Rx MIMO B
RX d'board B: Flex 1800 Rx MIMO B
TX d'board A: Flex 1800 Tx MIMO B
TX d'board B: Flex 1800 Tx MIMO B
usrp: failed to find usrp[1]
usrp: failed to find usrp[2]
usrp: failed to find usrp[3]
usrp: failed to find usrp[4]
usrp: failed to find usrp[5]
usrp: failed to find usrp[6]
usrp: failed to find usrp[7]
So I think the USRP is recognized and python and lsusrp are working
correctly.
So the one problem is the OpenBTS but I think that's not a topic for this
mailinglist.
Thank you for your help and your answers.
Regards
Ellen
2012/5/9 Ellen Apolinar ellen.apolinar...@googlemail.com
I have found the answer of my last question by myself:
I configured OpenBTS new, changed the OpenBTS.sql and smqueue.sql files,
did
sqlite3 -init ./apps/OpenBTS.example.sql /etc/OpenBTS/OpenBTS.db
sqlite3 -init smqueue/smqueue.example.sql /etc/OpenBTS/smqueue.db
But now there is a new error:
Starting the system...
ALERT 3078318960 USRPDevice.cpp:545:setRxFreq: set RX: 1.7832e+09failed
baseband freq: 1.78e+09
DDC freq: -3.2e+06
residual freq: 0.00298023
ALERT 3078318960 Transceiver.cpp:540:driveControl: RX failed to tune
ALERT 3074639568 TRXManager.cpp:342:tune: RXTUNE failed with status 1
ALERT 3074639568 TRXManager.cpp:395:powerOn: POWERON failed with
status 1
ALERT 3074639568 TRXManager.cpp:409:setPower: SETPOWER failed with
status 1
ALERT 3074639568 TRXManager.cpp:409:setPower: SETPOWER failed with
status 1
1336484679.264657 3074639568:
Welcome to OpenBTS. Type help to see available commands.
OpenBTS ALERT 3041119088 TRXManager.cpp:409:setPower: SETPOWER failed
with status 1
ALERT 3065535344 TRXManager.cpp:86:clockHandler: TRX clock interface
timed out, assuming TRX is dead.
Aborted
I am not sure if there is still a problem with gnu radio or it is just
an error from OpenBTS.
(The configuration in OpenBTS.config are right and the correct softlink
is set so this shouldn't be the problem.)
lsusrp:
Traceback (most recent call last):
File /usr/bin/lsusrp, line 25, in module
from gnuradio import usrp
ImportError: cannot import name usrp
so it seems that there are still problems with gnuradio but i don't know
how to locate them because I followed these guide:
[Discuss-gnuradio] flow graph with feedback by using udp source/sink
Hi list, I build a flow graph with both transmitter and receiver, and the forward path works fine. Then I want to let receiver block to feedback some data to the transmitter block, and I learn that GNU Radio does not allow the flow graph has loops. Now I'm trying to walkaround the limitation by using udp_sink and udp_source, but I haven't make it work. I find that if I connect udp_source to a file_sink, the output file does contain correct data and receiver works well. But if I connect udp_source directly to the block in transmit path, the receiver cannot receive any data. I guess it is due to the chicken-egg problem. Will it help if udp_source outputs some initial value when the connecting port has no data? What is the right way to make feedback work? -- alick Fedora 16 (Verne) user https://fedoraproject.org/wiki/User:Alick ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] MacOS, AVX, GCC, and LLVM
On May 8, 2012, at 2:29 PM, Josh Blum wrote: Note that I'm compiling on a Sandy Bridge Intel processor, so Altivec (PPC), NEON (ARM), and float-ABI (ARM?) aren't available. Also, LLVM 3.0 doesn't support -mpopcnt, and apparently doesn't support -munsafe_math_optimizations. And yet, the detections are showing Success. Sure enough, when I make, volk bombs out with: cc1: error: unrecognized command line option -mfpu=neon cc1: error: unrecognized command line option -mfloat-abi=softfp OK so, thats a pretty thorough analysis of the issue. I guess there there is question of how to fix/who to blame: 1) cmake is at fault, and that patch needs to be in there The CMake team has already incorporated a patch against forthcoming CMake 2.8.9: http://public.kitware.com/Bug/view.php?id=13194 However, I don't think the patch is ideal -- regex on compiler output seems like running with scissors to me. It'd be better for Clang to report an error by shell return code. But see below, because I don't think CMake has an alternative to output string parsing, at the moment. 2) clang is at fault and should error/not warn. This is what I believe, but in the short term, it appears the CMake people have already had to deal with warnings that are errors as far as CMake is concerned. Is there a clang flag to force unknown flags to become errors? I think you can just pass another flag to CHECK_CXX_COMPILER_FLAG along with the one being check. I tried using clang -Werror, but that does not change the return code -- it's 0 with or without -Werror. I noodled around with -fdiagnostics-show-category=id and -fdiagnostics-show-category=name, but didn't get any reaction from Clang. I even dug through the Clang source and tried to target the specific warning by name, like this: /usr/bin/c++ -Werror=unused-command-line-argument -Dhave_maltivec -maltivec -o test.cxx.o -c test.cxx Still, I get 0. It looks like the Clang team is aware of and has addressed this problem in time for the forthcoming LLVM 3.1 release: http://llvm.org/bugs/show_bug.cgi?id=12181 And if thats not possible we could switch to CHECK_CXX_SOURCE_COMPILES to help with the flag tests. 3) volk has a way to specify compiler specific flags. But its probably wrong to use this if clang is using GCC flags and reporting as GNU. http://gnuradio.org/cgit/gnuradio.git/tree/volk/gen/archs.xml Unless there's a workable Clang flag scheme I haven't tried, I'm not sure this would address the problem for LLVM releases 3.1, due to what I described above re: return codes. Perhaps attempting to compile a single inline assembly instruction for the architecture/instruction set in question would yield a proper failure, regardless of Clang's behavior? - Jared ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] MIMO configuration for gnuradio
Hi Tom Sorry for such a late reply.. Can u share some tutorial for implementation of mimo with the help of usrp. Any link what so ever Looking forward to something useful Thanks to u people. My project is now running very smoothly.. Regards, Ebtisam ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] flow graph with feedback by using udp source/sink
On 05/09/2012 08:26 AM, Alick Zhao wrote: Hi list, I build a flow graph with both transmitter and receiver, and the forward path works fine. Then I want to let receiver block to feedback some data to the transmitter block, and I learn that GNU Radio does not allow the flow graph has loops. Now I'm trying to walkaround the limitation by using udp_sink and udp_source, but I haven't make it work. FWIW, I have implemented a message passing for gnuradio that you can use as a feedback mechanism. Its not mainline code. Instructions: http://gnuradio.org/redmine/projects/gnuradio/wiki/BlocksCodingGuide#Messages Implementation is on the next branch: git://gnuradio.org/jblum.git -Josh ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] possibility of processing data in FPGA
On 05/08/2012 10:31 PM, Sravya Reddy wrote: hi, i have started working on SDR board a couple of weeks back. According to my knowledge, FPGA on the USRP board will do DDC(receive) and transfer the data sample to PC through USB port. now, my question is can we do signal processing tasks on FPGA??? suppose after down conversion i want to do some basic processing on FPGA..is there any possibility to do that? If yes , how to do the same. Sure, here is a readme about FPGA mods: http://code.ettus.com/redmine/ettus/projects/uhd/repository/revisions/master/entry/fpga/README.txt And directory with some skeleton implementations: http://code.ettus.com/redmine/ettus/projects/uhd/repository/revisions/master/show/fpga/usrp2/custom -josh ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] MIMO configuration for gnuradio
On Wed, May 9, 2012 at 12:41 PM, Ebtisam Ahmed ebtisamahme...@gmail.com wrote: Hi Tom Sorry for such a late reply.. Can u share some tutorial for implementation of mimo with the help of usrp. Any link what so ever Looking forward to something useful Thanks to u people. My project is now running very smoothly.. Regards, Ebtisam Sorry, Ebtisam, I don't have anything like a tutorial prepared for this. Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] file sink issues
I am having an odd problem with the file sink. I am inputting a pulsed signal into the N210. (~200 ns, 1 us period). The pulse frequency is a 5 MHz above the center frequency. I am running at 50 MSps with a RFX2400. I can see the correct plot when using the FFT sink and the scope sink. I see a short burst of sinusoidal signal and 800 ns of zero. However when I use a file sink, I see a 1.5 MHz signal that pervades the entire stream. I have recorded a signal before without a problem, but not at 50 MSps. http://old.nabble.com/file/p33763650/untitled.png untitled.png If I look at the abs value, then it appears as if I have a DC offset. http://old.nabble.com/file/p33763650/untitled2.png untitled2.png But I am not sure why I only see this problem when I stream to a file as opposed to the file sink. -- View this message in context: http://old.nabble.com/file-sink-issues-tp33763650p33763650.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Amplifier
Hello, i'm working in a private project with USRP 1 and OpenBTS on PCS 1900MHZ. Currently im working with chinesse (Ledmate.net) 25 dbm amplifier and duplexer for pcs 1900, this works, but i having problems in some areas, i can't register any phones. Can anybody tell me what is the best amplifiers brand for use in this project ?, i need to full extend the coverage area. My current configuration is USRP1+clock tamer PCS 25dbm amplifier PCS duplexer antenna (yagi or omni 9dbi) I need any other component? i'm planing to change the amplifier, what is the best and what better power for full extent coverage and work fine? I wait your news Thanks in advance Regards Cristian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Block with two or more outputs, with different sizes
Hi! I'm creating a signal processing block in C++, and I want my block to separate the source information into two different outputs, according to a pattern. The problem is that the outputs have different sizes, and, as a I return noutput_items in the work method, the outputs are completed with zeros until they have all the same size. Is it possible to have different output sizes in the block? Thanks, -- André F. B. Selva ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Block with two or more outputs, with different sizes
On 05/09/2012 12:06 PM, André Selva wrote: Hi! I'm creating a signal processing block in C++, and I want my block to separate the source information into two different outputs, according to a pattern. The problem is that the outputs have different sizes, and, as a I return noutput_items in the work method, the outputs are completed with zeros until they have all the same size. Is it possible to have different output sizes in the block? ok yes, see io_signaturev and some of the convenience factory functions here: http://gnuradio.org/cgit/gnuradio.git/tree/gnuradio-core/src/lib/runtime/gr_io_signature.h -josh ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Block with two or more outputs, with different sizes
Josh, The problem is that i don't know in advance the size of each stream. I'm kind of routing the input stream to the output streams, according to some information i read in each packet. So, I know a max value to the stream number of items, but cannot know certainly the output actual size. Att, 2012/5/9 Josh Blum j...@joshknows.com On 05/09/2012 12:06 PM, André Selva wrote: Hi! I'm creating a signal processing block in C++, and I want my block to separate the source information into two different outputs, according to a pattern. The problem is that the outputs have different sizes, and, as a I return noutput_items in the work method, the outputs are completed with zeros until they have all the same size. Is it possible to have different output sizes in the block? ok yes, see io_signaturev and some of the convenience factory functions here: http://gnuradio.org/cgit/gnuradio.git/tree/gnuradio-core/src/lib/runtime/gr_io_signature.h -josh ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio -- André F. B. Selva - SECOMP - Semana da Computação da Unicamp 2012 Coordenador Geral CACo - Centro Acadêmico da Computação ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Windows build problems
Hello all, I am trying to build a windows version of gnuradio for a friend. I have gnuradio running on my Fedora 16 and Unbuntu 12.04 machines with no know problems. I have most all of the necessary packages built and installed for the build using cygwin. However; Boost1_49_0 ,while having built without any problems, is not found by cmake. What I did was define BOOST_PREFIX as /opt/boost_1_49_0. This installed boost in the /opt/boost_1_49_0 by doing ./bootstrap.sh sudo ./b2 --prefix=$BOOST_PREFIX --with-thread --with-date_time --with-program_options --with-filesystem --with-system --layout=versioned threading=multi variant=release install That Done Boost was installed in /opt/boost_1_49_0 I then define BOOST_PREFIX=/opt/boost_1_49_0 again. then switch to gnuradio build-dir and do. cmake -DBOOST_ROOT=$BOOST_PREFIX -DBoost_INCLUDE_DIR= $BOOST_PREFIX/include/boost-1_49/ -DBoost_LIBRARY_DIRS= $BOOST_PREFIX/lib ../ My cmake repeatedly says Could not find Boost Thus nothing really gets built. I am pretty sure this is some kind of PATH problem. I have added all of the boost directories to my PATH statement and still no joy. Anyone have any ideas? Thanks Don Epand ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Block with two or more outputs, with different sizes
On Wed, May 9, 2012 at 3:06 PM, André Selva andrefse...@gmail.com wrote: Hi! I'm creating a signal processing block in C++, and I want my block to separate the source information into two different outputs, according to a pattern. The problem is that the outputs have different sizes, and, as a I return noutput_items in the work method, the outputs are completed with zeros until they have all the same size. Is it possible to have different output sizes in the block? Thanks, -- André F. B. Selva Andre, You can call produce(which_output, how_many_items) yourself inside the work function. When you return, instead of returning noutput_items, return WORK_CALLED_PRODUCE (or -2). The 'produce' handles updating the write buffers, and the return tells the scheduler not to do anything more with the pointers. I've never used this myself, so be careful :) Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Amplifier
You should know the gain of your amplifier. I would suspect that OpenBTS has USRP output power set to high level for direct antenna connection.This is probably too much for your amplifier. Try reducing your USRP output power to minimum level, then slowly increase it while observing your amplifier output signal on another receiver. Be careful of signal overload of your receiver too. On Wed, May 9, 2012 at 11:44 AM, Cristian Rougier crist...@lainfo.com.mxwrote: Hello, i'm working in a private project with USRP 1 and OpenBTS on PCS 1900MHZ. Currently im working with chinesse (Ledmate.net) 25 dbm amplifier and duplexer for pcs 1900, this works, but i having problems in some areas, i can't register any phones. Can anybody tell me what is the best amplifiers brand for use in this project ?, i need to full extend the coverage area. My current configuration is USRP1+clock tamer PCS 25dbm amplifier PCS duplexer antenna (yagi or omni 9dbi) I need any other component? i'm planing to change the amplifier, what is the best and what better power for full extent coverage and work fine? I wait your news Thanks in advance Regards Cristian __**_ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/**listinfo/discuss-gnuradiohttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Amplifier
Hello, Wayne, thank you very much for your answer. This is the amplifier and duplexer specs: (i paste this in order to dont attach the doc). AMPLIFIER Shenzhen Ledmate Technology Co., Ltd. PCS Signal Booster Technical Features: *Receiving and sending separation,low require for Ant isolation,making it convenient for installation. *Mini design with metal cavity filter technology inside. *Full-duplexdual-port design,and built-in power supply,making it convenient for installation. *Allowing for continuous gain adjustment 31dB by 1dB step. *ALC technology used to provide auto amplitude fixing. *Modules structures,making it convenient for installation,debugging and maintenance. LM-P1900-25-A Item Frequency Range (Mhz): Downlink :1930-1990MHz Uplink:1850-1910MHz Downlink :≥65dB Gain (dB) Uplink :≥70dB Output Power (dBm) ≥25 dBm ALC ≥28 dB Outer-band Spurious -36dBm ≤-36dBm(9KHz--1GHz) Spurious emission ≤-30dBm(1GHz--12.5GHz) Isolation 135dB Tri-rank intermodulation ≤-40dBc(PO=25dBm/CH/2CH) band flatness PCS1900≤±5 Relay Phone PCS Cover area 1000sq.m (Without concealment) Install Methods Lay/ Hanging(Indoor) Power supply AC220V(Expert AC-DC Convertor)(Facility Power Supply:DC+5V) Size 200mm(W)×142mm(D)×40mm(H) Weight Approx. 1.2 kg Fittings DC+5V/3Apower adapter ; Instruction High-reliability Comply with GB6993-86 standard DUPLEXER 1850～1910MHZ/1930～1990MHZ DUPLEXER Technical specification SERIAL PARAMETERS RX TX 1 Frequency Range 1850～1910MHz 1930～1990MHz 2 Insertion Loss ≤1.0dB ≤1.0dB 3 Ripple ≤0.7dB ≤0.7dB 4 VSWR ≤1.3 ≤1.3 5 Rejection ≥65dB@1930～1990MHz ≥65dB@1850～1910MHz 6 Input Power 50W CW 7 Operating Temperature -40℃～+70℃ 8 Surface Finish Black Paint 9 Connectors N-Female 10 RoHS Yes 11 Port Sign Port1:ANT ; Port2:RX ; Port3:TX If you please see my last email to the list, were i describe my actual configuration. Thank in advance Cristian El 2012-05-09 17:57, wayne roberts escribió: You should know the gain of your amplifier. I would suspect that OpenBTS has USRP output power set to high level for direct antenna connection. This is probably too much for your amplifier. Try reducing your USRP output power to minimum level, then slowly increase it while observing your amplifier output signal on another receiver. Be careful of signal overload of your receiver too. On Wed, May 9, 2012 at 11:44 AM, Cristian Rougier crist...@lainfo.com.mx [3] wrote: Hello, i'm working in a private project with USRP 1 and OpenBTS on PCS 1900MHZ. Currently im working with chinesse (Ledmate.net) 25 dbm amplifier and duplexer for pcs 1900, this works, but i having problems in some areas, i can't register any phones. Can anybody tell me what is the best amplifiers brand for use in this project ?, i need to full extend the coverage area. My current configuration is USRP1+clock tamer PCS 25dbm amplifier PCS duplexer antenna (yagi or omni 9dbi) I need any other component? i'm planing to change the amplifier, what is the best and what better power for full extent coverage and work fine? I wait your news Thanks in advance Regards Cristian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org [1] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [2] -- LA INFO Tecnología y Programación http://www.lainfo.com.mx [4] crist...@lainfo.com.mx [5] Tel:(++5255) 8589-1554 / 2452-1030 Movil: 55-1770-9888 No imprimir si no es necesario. Protejamos el Medio Ambiente Links: -- [1] mailto:Discuss-gnuradio@gnu.org [2] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [3] mailto:crist...@lainfo.com.mx [4] http://www.lainfo.com.mx/ [5] mailto:crist...@lainfo.com.mx ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Windows build problems
My cmake repeatedly says Could not find Boost Thus nothing really gets built. I am pretty sure this is some kind of PATH problem. I have added all of the boost directories to my PATH statement and still no joy. Anyone have any ideas? Thanks Don Epand You might want to trace through FindBoost.cmake and see where its getting confused. Here is a somewhat relevant posting on the topic: http://public.kitware.com/Bug/view.php?id=9510 Cygwin is probably not the best way to get gnuradio working in all its glory on windows (maybe the gui toolkit support has gotten better?). You may really have an easier time with MSVC in terms of getting working dependencies: http://gnuradio.org/redmine/projects/gnuradio/wiki/CMakeWork ALso, you may find these pre-built installers for windows useful: http://code.ettus.com/redmine/ettus/projects/uhd/wiki/GNURadio_Windows -Josh ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Amplifier
The amplifier you have is both a receiver amplifier and transmitter amplifier. The receive side (uplink) says its 70dB gain, but hopefully that is with ALC. You could likely overload usrp receiver easily from that. The OpenBTS.config has GSM.PowerAttenDB which you can try increasing to reduce power output. your specifications do not give the downlink gain. On Wed, May 9, 2012 at 4:35 PM, Cristian Rougier crist...@lainfo.com.mxwrote: ** Hello, Wayne, thank you very much for your answer. This is the amplifier and duplexer specs: (i paste this in order to dont attach the doc). AMPLIFIER Shenzhen Ledmate Technology Co., Ltd. PCS Signal Booster Technical Features: *Receiving and sending separation,low require for Ant isolation,making it convenient for installation. *Mini design with metal cavity filter technology inside. *Full-duplexdual-port design,and built-in power supply,making it convenient for installation. *Allowing for continuous gain adjustment 31dB by 1dB step. *ALC technology used to provide auto amplitude fixing. *Modules structures,making it convenient for installation,debugging and maintenance. LM-P1900-25-A Item Frequency Range (Mhz): Downlink :1930-1990MHz Uplink:1850-1910MHz Downlink :≥65dB Gain (dB) Uplink :≥70dB Output Power (dBm) ≥25 dBm ALC ≥28 dB Outer-band Spurious -36dBm ≤-36dBm(9KHz—1GHz) Spurious emission ≤-30dBm(1GHz—12.5GHz) Isolation 135dB Tri-rank intermodulation ≤-40dBc(PO=25dBm/CH/2CH) band flatness PCS1900≤±5 Relay Phone PCS Cover area 1000sq.m (Without concealment) Install Methods Lay/ Hanging(Indoor) Power supply AC220V(Expert AC-DC Convertor)(Facility Power Supply:DC+5V) Size 200mm(W)×142mm(D)×40mm(H) Weight Approx. 1.2 kg Fittings DC+5V/3Apower adapter ; Instruction High-reliability Comply with GB6993-86 standard DUPLEXER *1850～**1910MHz/1930～**1990MHz** **duplexer* Technical specification *Serial* *Parameters* *RX* *TX* 1 Frequency Range 1850～1910MHz 1930～1990MHz 2 Insertion Loss ≤1.0dB ≤1.0dB 3 Ripple ≤0.7dB ≤0.7dB 4 VSWR ≤1.3 ≤1.3 5 Rejection ≥65dB@1930～1990MHz ≥65dB@1850～1910MHz 6 Input Power 50W CW 7 Operating Temperature -40℃～+70℃ 8 Surface Finish Black Paint 9 Connectors N-Female 10 RoHS Yes 11 Port Sign Port1:ANT ; Port2:RX ; Port3:TX If you please see my last email to the list, were i describe my actual configuration. Thank in advance Cristian El 2012-05-09 17:57, wayne roberts escribió: You should know the gain of your amplifier. I would suspect that OpenBTS has USRP output power set to high level for direct antenna connection.This is probably too much for your amplifier. Try reducing your USRP output power to minimum level, then slowly increase it while observing your amplifier output signal on another receiver. Be careful of signal overload of your receiver too. On Wed, May 9, 2012 at 11:44 AM, Cristian Rougier crist...@lainfo.com.mxwrote: Hello, i'm working in a private project with USRP 1 and OpenBTS on PCS 1900MHZ. Currently im working with chinesse (Ledmate.net) 25 dbm amplifier and duplexer for pcs 1900, this works, but i having problems in some areas, i can't register any phones. Can anybody tell me what is the best amplifiers brand for use in this project ?, i need to full extend the coverage area. My current configuration is USRP1+clock tamer PCS 25dbm amplifier PCS duplexer antenna (yagi or omni 9dbi) I need any other component? i'm planing to change the amplifier, what is the best and what better power for full extent coverage and work fine? I wait your news Thanks in advance Regards Cristian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio -- *La Info* Tecnología y Programación http://www.lainfo.com.mx crist...@lainfo.com.mx *Agréganos en Facebookhttp://www.facebook.com/pages/La-Info-Publicidad-Bluetooth-Marketing-Bluetooth-Marketing-Sms/125635017500475 * Tel:(++5255) 8589-1554 / 2452-1030 Movil: 55-1770-9888 No imprimir si no es necesario. Protejamos el Medio Ambiente ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Automatic Fine Tuning for FM demod
I've just updated simple_fm_rcv to implement a simple Automatic Fine Tuning function. This function measures DC offset on the output of the demodulator block, and uses that to drive a parameter of the freq-xlating filter block that's on the input. It seems to work OK in my simple tests this evening. This is a piece that typically wouldn't be required if using UHD hardware, but the RTL-SDR radios have, ahem, less-than-ideal master oscillators, so I wanted to see if AFT would be possible. So, in effect, I've implemented a feedback loop within the flow-graph. But it's via a polled value, so it doesn't violate the rules. -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Transmit and receive suing GMSK
Hi Vivian, Sorry for the delay. I cannot see anything probelm from your grc graphs. It looks like you have already received signals from the transmitter. My suggestion is to check the parameters of packet decoder, GMSK demod, gain, etc. Hope you can sovle it. Regards, Jamie On Wed, May 2, 2012 at 10:35 AM, Vivian Paola Triana Galeano motis1232...@gmail.com wrote: Hi Jamie! Thanks for your help, I tried trasmitting and receiving with the flowgraph attached and the result was the FFT after the UHD-USRP source FFT_after_UHD_source.png. However I didn't receive anything after the gmsk_demod. I don't know why but anything I can see. If you can help me again, I really thank you. Vivian. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Amplifier
Hello, and thank you for your answer i have GSM.PowerAttenDB 23 Do you think that i need to increase ? Regards Cristian El 2012-05-09 20:00, wayne roberts escribió: The amplifier you have is both a receiver amplifier and transmitter amplifier. The receive side (uplink) says its 70dB gain, but hopefully that is with ALC. You could likely overload usrp receiver easily from that. The OpenBTS.config has GSM.PowerAttenDB which you can try increasing to reduce power output. your specifications do not give the downlink gain. On Wed, May 9, 2012 at 4:35 PM, Cristian Rougier crist...@lainfo.com.mx [6] wrote: Hello, Wayne, thank you very much for your answer. This is the amplifier and duplexer specs: (i paste this in order to dont attach the doc). AMPLIFIER Shenzhen Ledmate Technology Co., Ltd. PCS Signal Booster Technical Features: *Receiving and sending separation,low require for Ant isolation,making it convenient for installation. *Mini design with metal cavity filter technology inside. *Full-duplexdual-port design,and built-in power supply,making it convenient for installation. *Allowing for continuous gain adjustment 31dB by 1dB step. *ALC technology used to provide auto amplitude fixing. *Modules structures,making it convenient for installation,debugging and maintenance. LM-P1900-25-A Item Frequency Range (Mhz): Downlink :1930-1990MHz Uplink:1850-1910MHz Downlink :≥65dB Gain (dB) Uplink :≥70dB Output Power (dBm) ≥25 dBm ALC ≥28 dB Outer-band Spurious Spurious emission ≤-30dBm(1GHz--12.5GHz) Isolation 135dB Tri-rank intermodulation ≤-40dBc(PO=25dBm/CH/2CH) band flatness PCS1900≤±5 Relay Phone PCS Cover area 1000sq.m (Without concealment) Install Methods Lay/ Hanging(Indoor) Power supply AC220V(Expert AC-DC Convertor)(Facility Power Supply:DC+5V) Size 200mm(W)×142mm(D)×40mm(H) Weight Approx. 1.2 kg Fittings DC+5V/3Apower adapter ; Instruction High-reliability Comply with GB6993-86 standard DUPLEXER 1850～1910MHZ/1930～1990MHZ DUPLEXER Technical specification SERIAL PARAMETERS RX TX 1 Frequency Range 1850～1910MHz 1930～1990MHz 2 Insertion Loss ≤1.0dB ≤1.0dB 3 Ripple ≤0.7dB ≤0.7dB 4 VSWR ≤1.3 ≤1.3 5 Rejection ≥65dB@1930～1990MHz ≥65dB@1850～1910MHz 6 Input Power 50W CW 7 Operating Temperature -40℃～+70℃ 8 Surface Finish Black Paint 9 Connectors N-Female 10 RoHS Yes 11 Port Sign Port1:ANT ; Port2:RX ; Port3:TX If you please see my last email to the list, were i describe my actual configuration. Thank in advance Cristian El 2012-05-09 17:57, wayne roberts escribió: You should know the gain of your amplifier. I would suspect that OpenBTS has USRP output power set to high level for direct antenna connection. This is probably too much for your amplifier. Try reducing your USRP output power to minimum level, then slowly increase it while observing your amplifier output signal on another receiver. Be careful of signal overload of your receiver too. On Wed, May 9, 2012 at 11:44 AM, Cristian Rougier crist...@lainfo.com.mx [3] wrote: Hello, i'm working in a private project with USRP 1 and OpenBTS on PCS 1900MHZ. Currently im working with chinesse (Ledmate.net) 25 dbm amplifier and duplexer for pcs 1900, this works, but i having problems in some areas, i can't register any phones. Can anybody tell me what is the best amplifiers brand for use in this project ?, i need to full extend the coverage area. My current configuration is USRP1+clock tamer PCS 25dbm amplifier PCS duplexer antenna (yagi or omni 9dbi) I need any other component? i'm planing to change the amplifier, what is the best and what better power for full extent coverage and work fine? I wait your news Thanks in advance Regards Cristian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org [1] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [2] -- LA INFO Tecnología y Programación http://www.lainfo.com.mx [4] crist...@lainfo.com.mx [5] Tel:(++5255) 8589-1554 / 2452-1030 Movil: 55-1770-9888 No imprimir si no es necesario. Protejamos el Medio Ambiente -- LA INFO Tecnología y Programación http://www.lainfo.com.mx [7] crist...@lainfo.com.mx [8] Tel:(++5255) 8589-1554 / 2452-1030 Movil: 55-1770-9888 No imprimir si no es necesario. Protejamos el Medio Ambiente Links: -- [1] mailto:Discuss-gnuradio@gnu.org [2] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [3] mailto:crist...@lainfo.com.mx [4] http://www.lainfo.com.mx/ [5] mailto:crist...@lainfo.com.mx [6] mailto:crist...@lainfo.com.mx [7] http://www.lainfo.com.mx/ [8] mailto:crist...@lainfo.com.mx ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org
