Understood, clarified resample is the solution. Thanks, BTW, when I read the txrx_loopback_to_file example, it does make 2 usrp objects (1 tx, 1 rx) point to 1 device, how can it work?
From: Marcus D. Leech <[email protected]> Sent: Saturday, May 7, 2022 9:50 PM To: [email protected] Subject: [USRP-users] Re: X300 simultaneously transmit 2 signals of different sample rate and center frequency On 2022-05-07 08:22, ?? WANG Cui wrote: Hi, I searched around and still can’t get clear answer, so I would seek help here. I want to simultaneously transmit 2 baseband files which are different sample rate (one is rate 2.5 MHz at freq 1.5 GHz, and the other is rate 8 MHz at freq 1.8 GHz), and would like to utilize 2 daughter boards of X300. I tried to configure it with 2 multi_usrp objects, but the call failed when get second tx_streamer (however, the first get call succeed.), with: Error: RuntimeError: Multiple sampling rates downstream of TX terminator 0: ... I know X300 can transmit/receive 2 channels at 2 different sample rate, just wonder is it possible to simultaneously transmit 2 channels as described above? Or have to resample one file to the same sample rate of the other file, then transmit together? Thanks in advance, WANG Cui You can't have multiple multi_usrp objects pointing to the same device, so you'll have to resample one of your streams and use a single multi_usrp object.
_______________________________________________ USRP-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
