Re: [USRP-users] Single frequency interference for e310

2018-03-04 Thread liu Jong via USRP-users
Hi all, Any suggestion is welcome. 2018-03-02 14:21 GMT+08:00 liu Jong : > Hi all, >When we set "master_clock_rate=25.6M" for Receiving and we found > that there is a Single frequency interference in > 76.8M(25.6X3),102.4M(25.6X4),153.6M and so on until above 1.5G.We changed > the "master

[USRP-users] Frequency tuning

2018-03-04 Thread Javier Coronel (Expo Impex, S.L.) via USRP-users
Hi Everybody!, I have a B210 and I have done a MIMO frequency scanner to send and receive. I always tune the same freq for both 2 Tx and 2 Rx. Everything works very well even working at a Sampling Freq = 30MHz. But I have checked that the functions set_tx_freq and set_rx_freq (that I call 2 tim

Re: [USRP-users] Transmitting and receiving on the same frequency with USRP B200

2018-03-04 Thread Gilad Beeri (ApolloShield) via USRP-users
* When you say a max gain of 89 dB, that is the gain you set in GNU Radio on the USRP block right? Yes (USRP Sink, not Source). * With a 30dB attenuator, regardless of what I set the gain to on either the rx/tx blocks in GNU Radio, and regardless of how far apart I position the antennas I won't be

Re: [USRP-users] Transmitting and receiving on the same frequency with USRP B200

2018-03-04 Thread Christopher Richardson via USRP-users
Thanks a lot for your reply, lots of very useful information! A few questions: * When you say a max gain of 89 dB, that is the gain you set in GNU Radio on the USRP block right? * With a 30dB attenuator, regardless of what I set the gain to on either the rx/tx blocks in GNU Radio, and regardless