Re: [Discuss-gnuradio] Re: USRP / DBSRX calibration

2008-05-09 Thread John Ewan
; Date: Thursday, May 8th, 2008 6:20 AM MDT To: discuss-gnuradio@gnu.org Subject: [Discuss-gnuradio] Re: USRP / DBSRX calibration Hi. I'm trying to estimate the noise temperature in the DBSRX and USRP as a part of a student project where we compare the USRP as an alternative for the receiver

Re: [Discuss-gnuradio] Re: USRP / DBSRX calibration

2008-05-08 Thread Marcus Leech
Staffan Josefsson wrote: Hi. I'm trying to estimate the noise temperature in the DBSRX and USRP as a part of a student project where we compare the USRP as an alternative for the receiver in a radio telescope. I tried to convert the -165dBm/Hz to Kelven but I'm not getting a sane value. I ma

[Discuss-gnuradio] Re: USRP / DBSRX calibration

2008-05-08 Thread Staffan Josefsson
Hi. I'm trying to estimate the noise temperature in the DBSRX and USRP as a part of a student project where we compare the USRP as an alternative for the receiver in a radio telescope. I tried to convert the -165dBm/Hz to Kelven but I'm not getting a sane value. I may be way out here but would