(You can ignore my previous response, if you read Derek's response - poor timing.)
An alternative way to fix the problem (when you need to xmit on two different frequencies which are not located close enough) is to use the B210 as IF stages and to add your own RF stages on top of it. Anyway, this is a hardware limitation and the only way to fix the problem is to add more hardware (or re-design the system, so as you wouldn't have to transmit on two distinct frequencies). Regards, Kyeong Su Shin ________________________________ 보낸 사람: Kyeong Su Shin via USRP-users <[email protected]> 대신 USRP-users <[email protected]> 보낸 날짜: 2018년 3월 15일 목요일 오후 10:39:12 받는 사람: Jose Benito Diéguez Teixeira; [email protected] 제목: Re: [USRP-users] Configurating B210 transmitter into two different central frequencies. Hello José, I am pretty sure that AD9361 has only one PLL for the both TX chains. So, there is a hardware-level limitation for this. If the difference between the highest (RF) frequency and the lowest (RF) frequency occupied by the two waveforms (combined) is smaller than the effective sampling rate of the board, you will be able to transmit the two different signals. If the seperation has to be larger, you are pretty much out of luck. The easiest fix is to get more USRPs and synchronize them (if necessary) using a reference signal. Regards, Kyeong Su Shin ________________________________ 보낸 사람: Jose Benito Diéguez Teixeira via USRP-users <[email protected]> 대신 USRP-users <[email protected]> 보낸 날짜: 2018년 3월 15일 목요일 오후 10:22:52 받는 사람: [email protected] 제목: [USRP-users] Configurating B210 transmitter into two different central frequencies. Hello usrp users, We are using a B210 SDR device for our application. This device has two RF frontends, but we are in doubt about their mutual independence. We need to transmit two different waveforms, each into its own frequency. We have tried to create two tx_streamers, but the creation of the second one seems to overwrite the first streamer. Is this approach the correct way to implement the dual frequency transmittion? Or more focused on the hardaware, is it possible to set two different transmittion frequencies with the B210? Thanks in advance, -- <http://www.gradiant.org/> José Benito Diéguez Teixeira
_______________________________________________ USRP-users mailing list [email protected] http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
