Re: [Discuss-gnuradio] USRP signal is different from the spectrum analyzer

2012-07-05 Thread John Malsbury
Try reducing input pwr to usrp. John On Thursday, July 5, 2012, Julio Hector Aguilar Renteria < jhagui...@gmail.com> wrote: > The USRP, always show this picture, but is different from the spectrum analyzer and signal hound on the same frequency. > may be happening to the signal is different.

[Discuss-gnuradio] What is input RF, Daugherboard RFX900 ?

2012-07-05 Thread Julio Hector Aguilar Renteria
What is input RF, Daugherboard RFX900 ? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Question about inter-block communications

2012-07-05 Thread Tommy Tracy II
Dear Discussion List, I'm just starting with GnuRadio and I would like to understand how the GnuRadio block threads communicate with each other and use shared memory. Does anyone have any insight and/or resources around this subject? Sincerely, Tommy J. Tracy II Computer Engineering Un

[Discuss-gnuradio] Sink and Source that pass on Stream Tags

2012-07-05 Thread Andrew Burger
I tried udp and file sink and source to pass on stream tags but I don't receieve them on the source side. Am I missing something? Are there any way to pass on steam tags to another machine or save them to a file. Thanks ___ Discuss-gnuradio mailing list

[Discuss-gnuradio] Question about OFDM and USRP

2012-07-05 Thread Amr Youssef
Hi all , i have a question , while i am transmitting OFDM through USRP 2 board and receiving it through another board , USRP N210 , i received data after USRP source but after OFDM demod. block there is no thing received (demodulated) . when i connected OFDM_demod to a vector sink , and then , w

[Discuss-gnuradio] USRP2 + RFX900 + Antenna Anritsu

2012-07-05 Thread Julio Hector Aguilar Renteria
I can use the usrp2 + rfx900 Anritsu mark with an antenna with these characteristics? * * Product Description: Portable Antenna, SMA (m), 896-941 MHz, 50 Ohm ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo

Re: [Discuss-gnuradio] b100 error

2012-07-05 Thread tzopik
Hello to all After compiling with different versions of the library BOOST (1.46.1,1.47.0,1.48.0,1.49.0) the problem remained, so it is not the library BOOST the blame of the SID message problem. But in my case the problem has become much less evident after recompile the library LIBUSB, what I thin

[Discuss-gnuradio] volk work update - automatic alignment and custom dispatchers

2012-07-05 Thread Josh Blum
Greetings VOLK enthusiasts, The last remaining frontier for VOLK development: Dealing automatically with buffer alignment, head cases, and tail cases. Here is my attempt... All work can be found on the volk_work branch of my github https://github.com/guruofquality/gnuradio/tree/volk_work

[Discuss-gnuradio] fpga halfband filter

2012-07-05 Thread signalswdm
Dear everyone: In the FPGA code of halfband_decim,v of USRP1, it has a input strobe_in, which indates a new data comes. Strobe_in is determined by the decimation rate. For example if we decimate by 6 we write to the register FR_DECIM_RATE 6/2-1=2 and strobe_in comes high every 3 clocks.