Hi Piotr, for X410, the other ADCs/DACs are unused/left unconnected. We're using 4 ADCs and 4 DACs on that product. Given the complexity of the daughterboard to have seamless coverage of 1M to 7.2 GHz without Nyquist gaps and the targeted form factor of the X410, that's a trade-off we had to make. For the actual up/down conversion (seeing the complexity per channel), I'd recommend https://files.ettus.com/manual/page_zbx.html
The phases between TX and RX channels of the device across multiple reboots of X410 are currently not repeating/coherent. We're actively looking into the matter because it is a high want feature. We cannot make promises in terms of performance as of now though. Hope this helps Jan -----Original Message----- From: Piotr Krysik <per...@o2.pl> Sent: Mittwoch, 20. Oktober 2021 10:17 To: USRP List <USRP-users@lists.ettus.com> Subject: [EXTERNAL] [USRP-users] Questions regarding USRP X410 Hi all, I'm considering to purchase a USRP X410 for one of research projects. I have some questions: - X410 has 4 Rx and 4 Tx channels with superheterodyne paths - so there are no quadrature inputs or outputs. RFSoC ZU28DR (which is available on ZCU111 board that I have some experience with) has 8 ADC inputs and 8 DAC outputs. If only half (4) of ADCs and DACs are used in X410 what happens to the other half? Are they unconnected? - is it confirmed in practice that it can keep constant (~ without temperature drift) phase offset between Rx and Tx channels from across multiple runs of the device? Best Regards, Piotr Krysik _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com National Instruments Dresden GmbH; Geschäftsführer (Managing Director): Kevin Schultz; Sitz (Registered Office): Dresden; HRB (Commercial Register No.): 22081; Registergericht (Registration Court): Dresden This email and any attachments are intended only for the person to whom this email is addressed and may contain confidential and/or privileged information. If you received this email in error, please do not disclose the contents to anyone, but notify the sender by return email and delete this email (and any attachments) from your system. _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com
