Re: [Discuss-gnuradio] Re: Error - in building new signal processing block
Hi, 1) Edit gr-howto-write-a-block/Makefile.common 2) Replace the line : SWIGGRFLAGS = -I$(GNURADIO_CORE_INCLUDEDIR)/swig -I$(GNURADIO_CORE_INCLUDEDIR) With the line: SWIGGRFLAGS = -I$(GNURADIO_CORE_INCLUDEDIR)/swig -I$(GNURADIO_CORE_INCLUDEDIR) -I$(includedir) Regards, Firas --- On Sat, 11/29/08, Bruhtesfa Ebrahim <[EMAIL PROTECTED]> wrote: From: Bruhtesfa Ebrahim <[EMAIL PROTECTED]> Subject: [Discuss-gnuradio] Re: Error - in building new signal processing block To: discuss-gnuradio@gnu.org Date: Saturday, November 29, 2008, 2:56 PM Firas Abbas wrote: > check : http://gnuradio.org/trac/ticket/308 Hi Firas, Tha solution on this ticket says: "Creating a symlink from /usr/local/include/gnuradio/gruel to /usr/local/include/gruel or applying the attached patch "works for me". I don't know if it's the right thing to do, though, I'm new to the make system." But I am new to such things, so i didnot understand the term creating a symlink.Please, could you explain me these terms. -Thanks Bruhtesfa -- Posted via http://www.ruby-forum.com/. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Sounding signal output power and spectrum
Hi all, I have been doing some channel sounding measurements with the USRP, and there is something that I am not sure about. 1. The gr-sounder default transmit amplitude is 4096, is there a particular reason why this number is chosen? My guess is because a 12- bit DAC is used. 2. All my measurements were conducted with RFX 2400 d'board, and the d'board is connected directly to a spectrum analyzer, the measured output power levels are listed below: 128:-28 dBm 256:-23 dBm 512:-17 dBm 1024: -11 dBm 2048: -6 dBm 4096: 1 dBm so far so good(roughly 6dB step when I double the tx amplitude), and all signals cover 32MHz bandwidth, but when I change --tx-amplitude to 8192, it gave me a spike at the center frequency with very narrow bandwidth, the power measured is about 11 dBm, any tx amplitude value greater than 8192 yields a small power (-61dBm) with 32MHz bandwidth. I am sure this has something to do with the DAC and PA, but not sure exactly how to explain it. 3. I did a indoor measurement with TX-RX separation of 50 meters (w/ LOS), the received channel impulse response has 5 chunks of CIRs instead of one, and the number of samples between each chunk is always 800 chips, I am sure those CIRs are not multipath delays since in an indoor environment the corresponding delays can't be 800-chips apart from each other(way too long). Am I missing something here? Thanks in advance for any help. Qi Chen ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Re: Error - in building new signal processing block
Firas Abbas wrote: > check : http://gnuradio.org/trac/ticket/308 Hi Firas, Tha solution on this ticket says: "Creating a symlink from /usr/local/include/gnuradio/gruel to /usr/local/include/gruel or applying the attached patch "works for me". I don't know if it's the right thing to do, though, I'm new to the make system." But I am new to such things, so i didnot understand the term creating a symlink.Please, could you explain me these terms. -Thanks Bruhtesfa -- Posted via http://www.ruby-forum.com/. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
