Re: [Discuss-gnuradio] Setting the XCVR2450 Bandwidth

2012-08-22 Thread Josh Blum
On 08/22/2012 06:11 AM, Michael Hill wrote: > Thanks Josh, > > I've still been toying with this though.. and aren't really having any > success. > E.g. if I pick a Tx bandwidth of 24MHz.. and transmit > > and use 8bit I&Q samples transmitted at 50MHz.. then shouldn't I see some > signs of the f

Re: [Discuss-gnuradio] Re g : spectrum sensing code

2012-08-22 Thread sumitstop
Hi Sreeraj, Thanks for the reply. sreeraj r wrote: > > > >>Question - 1 >> >>I was working with the UHD version of spectrum sensing code. >> >>I have USRP2 with me. I learnt that USRP2 can achieve 50MHz of RF bandwidth >>with 8 bit samples and 25MHz of RF bandwidth with 16 bit samples. >> >>

Re: [Discuss-gnuradio] Question about digital_ofdm_mapper_bcv class and d_msg variable

2012-08-22 Thread Lampros Katsikas
Thank you very much for your reply but this is not what i was looking for... Its my fault because didn't tell you what exactly i would like to do! So, i don't want just to run the benchmark_tx.py to see its behaviour but i would like if possible to give the packet_size as a parameter or even set

Re: [Discuss-gnuradio] Setting the XCVR2450 Bandwidth

2012-08-22 Thread Michael Hill
Thanks Josh, I've still been toying with this though.. and aren't really having any success. E.g. if I pick a Tx bandwidth of 24MHz.. and transmit and use 8bit I&Q samples transmitted at 50MHz.. then shouldn't I see some signs of the filter? What should I be looking for on my spec amp? I assume

Re: [Discuss-gnuradio] Question about Spectrum Sense codes

2012-08-22 Thread sumitstop
Hi Chen, I was also doing the same as you asked. Since energy equals the sum of all FFT coefficients hence summation of all FFT bins looks reasonable to me. :teeth: cdong8812 wrote: > > Hi, > I'm currently working on a project about spectrum sensing and I went over > the USRP_Spectrun_Sense cod

[Discuss-gnuradio] simple parallel output shift register

2012-08-22 Thread abdullah unutmaz
Greetings everybody, I have been trying to design a simple parallel output shift register, use gr.buffer & gr.buffer_reader. But I am having the error:

Re: [Discuss-gnuradio] Re g : spectrum sensing code

2012-08-22 Thread sreeraj r
>Question - 1 > >I was working with the UHD version of spectrum sensing code. > >I have USRP2 with me. I learnt that USRP2 can achieve 50MHz of RF bandwidth >with 8 bit samples and 25MHz of RF bandwidth with 16 bit samples. > >I wanted to know how does this information translates while passing m