Re: [Discuss-gnuradio] [USRP-users] questions about calibration examples in UHD utility

2013-01-31 Thread gang li
Hi, Mike, Thanks very much for your reply. I also searched online about the usrp calibration. I found a post and some information: "During cal, the TX is switched away from the TX antenna into the "closed" switch port, where it leaks into the RX which is listening to the TX/RX antenna. So termina

Re: [Discuss-gnuradio] [USRP-users] questions about calibration examples in UHD utility

2013-01-28 Thread Mike Jameson
Hi, Calibration uses full duplex and should only be done without anything plugged into the 'tx/rx' or 'rx2' ports. There is no direct connection, just measurement of the residual rf escaping. Mike M0MIK On 28 Jan 2013 20:17, "gang li" wrote: > Hi, guys, > > I am reading the codes for uhd_cal_rx