Re: [Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread Marcus D. Leech
On 12/20/2015 10:42 PM, w xd wrote: Thanks so much. If in a general indoor environment(no people),we just use a usrp as a receiver and in a quiet frequency band,have someone have the general data?Can you give a non-official data?around -80dbm?or -70dbm? Or how to measu

Re: [Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread Marcus D. Leech
On 12/20/2015 10:42 PM, w xd wrote: Thanks so much. If in a general indoor environment(no people),we just use a usrp as a receiver and in a quiet frequency band,have someone have the general data?Can you give a non-official data?around -80dbm?or -70dbm? Or how to measu

Re: [Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread w xd
Thanks so much. If in a general indoor environment(no people),we just use a usrp as a receiver and in a quiet frequency band,have someone have the general data?Can you give a non-official data?around -80dbm?or -70dbm? Or how to measure it?What is the true way to measure it

Re: [Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread Marcus D. Leech
On 12/20/2015 10:31 PM, w xd wrote: Hi, Thank you so much. I have looked at one sentence "the noise floor is around /−/90dBm" in a paper.So I want to know whether have some similar measure data about the noise floor in the general environment indoor not just the noise figure. T

Re: [Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread w xd
Hi, Thank you so much. I have looked at one sentence "the noise floor is around *−*90dBm" in a paper.So I want to know whether have some similar measure data about the noise floor in the general environment indoor not just the noise figure. Thanks. 2015-12-21 11:22 GMT+08:00 Marcus

Re: [Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread w xd
Thanks so much. "The true noise power" I mean if I don't send anything just use the usrp to receive.Because don't have signal in the environment,the receive thing using the usrp is the noise.I want to know the power of the noise.Thanks.Hope to explain explicit. Thanks. 2015-12-21 11:04 GMT+08:00

Re: [Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread Marcus D. Leech
On 12/20/2015 09:58 PM, w xd wrote: Hi, I want to know the true noise power(in dbm) of the usrp n210.And i'm using the sbx and lp0964 antenna. Do someone have the data? Thanks. Best Regards, xs w Noise figure depends on frequency and gain setting: http://files.ettus.com/perf

[Discuss-gnuradio] The noise power of the USRP

2015-12-20 Thread w xd
Hi, I want to know the true noise power(in dbm) of the usrp n210.And i'm using the sbx and lp0964 antenna. Do someone have the data? Thanks. Best Regards, xs w ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.