Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

On 18.01.2011 23:37, JP234 wrote: > > Moeller: Yes I am trying to solve the near-far problem. I have used the > USRP radios to test the concept, and it works really well I am getting about > 55 - 60 dB suppression which is essentially equal to the practical dynamic > range of the ADCs for the US

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

Moeller: Yes I am trying to solve the near-far problem. I have used the USRP radios to test the concept, and it works really well I am getting about 55 - 60 dB suppression which is essentially equal to the practical dynamic range of the ADCs for the USRP1. I would insert about 1 MHz of white Ga

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

On 13.01.2011 22:59, sirjanselot wrote: > The reason why I do not want to attenuate is because I want to receive a > high-powered signal and low-powered signal at the same frequency. Can you be more specific? This is an interesting topic. In most cases the signals cannot be separated any more. Y

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

Thanks Marcus. The reason why I do not want to attenuate is because I want to receive a high-powered signal and low-powered signal at the same frequency. If I attenuate then the low-powered signal will be reduced and if I go beyond the noise floor, I might see it. The goal was to stretch the di

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

Thanks Marcus. The reason why I do not want to attenuate is because I want to receive a high-powered signal and low-powered signal at the same frequency. If I attenuate then the low-powered signal will be reduced and if I go beyond the noise floor, I might see it. The goal was to stretch the

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

On 01/13/2011 11:23 AM, jan acosta wrote: > I have one already, but you can't receive anything above - 10 dBm. > Plus I'd like to gain FPGA programming experience. I'll observe that with a 30dB attenuator in front of your receiver, you can easily do what you want to do. I suspect that you don'

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

On 01/13/2011 10:33 AM, Euripedes Rocha Filho wrote: > Why not just buy a USRP + WBX? > > 2011/1/13 sirjanselot > > > > Hello, > > I am looking to buy an Altera DSP FPGA Kit (DSP Development Kit, > Stratix III > Edition) for school research but I'm not

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

I have one already, but you can't receive anything above - 10 dBm. Plus I'd like to gain FPGA programming experience. - Jan On Thu, Jan 13, 2011 at 10:33 AM, Euripedes Rocha Filho < rocha.euripe...@gmail.com> wrote: > Why not just buy a USRP + WBX? > > 2011/1/13 sirjanselot > >> >> Hello, >> >

Re: [Discuss-gnuradio] Building an RF Front end for DSP FPGA Kits with ADCs

Why not just buy a USRP + WBX? 2011/1/13 sirjanselot > > Hello, > > I am looking to buy an Altera DSP FPGA Kit (DSP Development Kit, Stratix > III > Edition) for school research but I'm not sure how i am going to build an > RF-Front End for it. I am looking to receive signals up to +30 dBm from