Hi Marcus, I'm sorry, I want to Say using two same kind of antennas as TX and RX respectively in one B210 board. And how can I get the S-parameters?
Thank you, Yan -----Original Message----- From: Marcus Müller [mailto:marcus.muel...@ettus.com] Sent: 15 December 2015 17:44 To: Yan Huang; discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] using USRP to get scattering parameters Hi Yan, With the same antenna: That is going to be impossible, because you can't TX and RX on the same port with a USRP. Also, the TX would be extremely loud and possibly even damage RX. Calibration: Measure a known loopback channel (ie. a cable with an attenuator that you've measured with a Network Analyzer), and calibrate that way, or estimate loopback from your observation. Best regards, Marcus On 15.12.2015 18:28, Yan Huang wrote: > Hi Marcus, > > I want to analyse the wireless network in single channel with the same > antenna. > > And how can I calibrate the random phase offset with B210? > > Thanks, > Yan > > -----Original Message----- > From: discuss-gnuradio-bounces+eexyh22=nottingham.ac...@gnu.org > [mailto:discuss-gnuradio-bounces+eexyh22=nottingham.ac...@gnu.org] On > Behalf Of Marcus Müller > Sent: 15 December 2015 16:53 > To: discuss-gnuradio@gnu.org > Subject: Re: [Discuss-gnuradio] using USRP to get scattering > parameters > > Hi Yan, > > that is an extremely broad question; what kind of network analyzer do you > have in mind? > > Notice that you will have to calibrate the B210 random TX/RX phase offset > after every tune. > > Best regards, > Marcus > > On 15.12.2015 17:31, Yan Huang wrote: >> I have tried to use USRP B210 and GNUradio to send and receive signal, and >> now I want to get the network's scattering parameters. But I don't know how >> to get them using the software. > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > This message and any attachment are intended solely for the addressee > and may contain confidential information. If you have received this > message in error, please send it back to me, and immediately delete it. > > Please do not use, copy or disclose the information contained in this > message or in any attachment. Any views or opinions expressed by the > author of this email do not necessarily reflect the views of the > University of Nottingham. > > This message has been checked for viruses but the contents of an > attachment may still contain software viruses which could damage your > computer system, you are advised to perform your own checks. Email > communications with the University of Nottingham may be monitored as > permitted by UK legislation. > This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please send it back to me, and immediately delete it. Please do not use, copy or disclose the information contained in this message or in any attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. This message has been checked for viruses but the contents of an attachment may still contain software viruses which could damage your computer system, you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
