Re: [Discuss-gnuradio] two questions about the general communication system

2008-04-12 Thread George Nychis
Bill Stevenson wrote: 2, In GNURadio, is there a random number generator? e.g. i wanna generate a series of random number between 0 and 255? Anyone can tell me how to generate that? Thank u!!! GNU Radio is not a programming language. GNU Radio is built from several languages. Almost all

[Discuss-gnuradio] two questions about the general communication system

2008-04-12 Thread Bill Stevenson
Hello, everyone! Right now, I am trying to plot the graph of the BER vs Eb/N0. I have 2 questions: 1, I used a vector as the source, but how can we know or define the bit energy in the transmitted bit streams? (very important so as to get BER) 2, In GNURadio, is there a random number generator

Re: [Discuss-gnuradio] Cygwin install problem

2008-04-12 Thread Don Ward
Rob Walker wrote: I have a working version of GNU Radio 3.0.3 on a Cygwin system and just tried to install 3.1.2. I followed the instructions on the wiki page and configure went ok but I got the following error message during the make: In file included from /usr/include/python2.5/Python.h:5

Re: [Discuss-gnuradio] Shared varible between blocks

2008-04-12 Thread Michael Dickens
IIRC: The "standard C" way to do this is: In one, and only one, .cc file, do at the top level (not in any class, method, or function definition), e.g.: int foo = 0; then in the .h file do: extern int foo; and you should be able to access 'foo' from any code the includes that .h file. O

[Discuss-gnuradio] Shared varible between blocks

2008-04-12 Thread Vincenzo
Hi everybody, I'm looking for suggestions on how to implement a variable that is shared between two blocks. If I include the same header into the .cc files implementing my blocks I get the "multiple definition of variable x" error. Which is the correct way to do this? is there an example availab

Re: [Discuss-gnuradio] MinGW install problem

2008-04-12 Thread Don Ward
Rob Walker wrote: I have a working version of GNU Radio 3.0.4 on a MinGW system and noticed that new instructions had been posted for 3.1.2 so thought I'd give it a shot but ran into the following problem when running the ./bootstrap command just after the makefiles patch: $ ./bootstrap conf

Re: [Discuss-gnuradio] Issue with current RBF?

2008-04-12 Thread Michael Dickens
On Apr 12, 2008, at 4:01 PM, Johnathan Corgan wrote: On Sat, Apr 12, 2008 at 12:54 PM, Michael Dickens <[EMAIL PROTECTED]> wrote: This happens using the latest trunk RBF, but not the RBF from r4287. If you could bisect this to a particular RBF revision, that wold be immensley helpful. Thes

[Discuss-gnuradio] Cygwin install problem

2008-04-12 Thread Walker, Robert CIV NSWC Crane, WCE Aviation Systems Staff
Sorry if this is a duplicate. I have a working version of GNU Radio 3.0.3 on a Cygwin system and just tried to install 3.1.2. I followed the instructions on the wiki page and configure went ok but I got the following error message during the make: In file included from /usr/include/python2.

[Discuss-gnuradio] MinGW install problem

2008-04-12 Thread Walker, Robert CIV NSWC Crane, WCE Aviation Systems Staff
Sorry if this is a duplicate...email issues. I have a working version of GNU Radio 3.0.4 on a MinGW system and noticed that new instructions had been posted for 3.1.2 so thought I'd give it a shot but ran into the following problem when running the ./bootstrap command just after the makefiles p

Re: [Discuss-gnuradio] Issue with current RBF?

2008-04-12 Thread Johnathan Corgan
On Sat, Apr 12, 2008 at 12:54 PM, Michael Dickens <[EMAIL PROTECTED]> wrote: > This happens using the latest trunk RBF, but not the RBF from r4287. If you could bisect this to a particular RBF revision, that wold be immensley helpful. These don't change that often: http://gnuradio.org/trac/log/

[Discuss-gnuradio] Issue with current RBF?

2008-04-12 Thread Michael Dickens
We recently gave some quite successful demos for a sponsor. In order to get one of the demos to work, we had to revert the RBF files from the latest SVN trunk ... we chose r4287 < http://www.gnuradio.org/trac/changeset/4287 > because that's when the check in to fix the issue of turning off

Re: [Discuss-gnuradio] gnuradio from trunk fails to build - typo in changeset 8188

2008-04-12 Thread Robert McGwier
Sorry about that. I must have dreamed I did a make! Bob On Sat, Apr 12, 2008 at 11:47 AM, Johnathan Corgan <[EMAIL PROTECTED]> wrote: > On Sat, Apr 12, 2008 at 4:39 AM, Tobias Gresch <[EMAIL PROTECTED]> wrote: > > > I checked out the latest gnuradio version from trunk and it fails to build >

Re: [Discuss-gnuradio] gnuradio from trunk fails to build - typo in changeset 8188

2008-04-12 Thread Johnathan Corgan
On Sat, Apr 12, 2008 at 4:39 AM, Tobias Gresch <[EMAIL PROTECTED]> wrote: > I checked out the latest gnuradio version from trunk and it fails to build > due to an error in gr_argmax_XX.cc.t (missing open parenthesis on line 60): > > http://gnuradio.org/trac/changeset/8188#file0 Fixed in r8189, t

Re: [Discuss-gnuradio] Re: capture ADSL signal with TV card?

2008-04-12 Thread Hew How Chee
Hi, The CX2388x sampling rate is 27 MHz and has a DC blocking capacitor input. You can try applying the ADSL direct to its input with the correct signal level. My concern is more to the noise and the resolution of the ADC which is currently 8 bit. Regards, Hew --- Patrick Strasser <[EMAIL PROTE

[Discuss-gnuradio] gnuradio from trunk fails to build - typo in changeset 8188

2008-04-12 Thread Tobias Gresch
Hello, I checked out the latest gnuradio version from trunk and it fails to build due to an error in gr_argmax_XX.cc.t (missing open parenthesis on line 60): http://gnuradio.org/trac/changeset/8188#file0 Best regards, Tobias -- ___ Discuss-gn