We often get asked how many receive and transmit chains does XTRX have and whether you can tune them to different frequencies, so I decided to clarify this once and for all.
XTRX is a 2×2 MIMO transceiver, which means that:
If you want to receive or transmit at two frequencies located close to each other, you still can do this with XTRX by digitally shifting one of the channel frequencies relative to the central frequency. This is called baseband shifting or mixing and can be done either at the time you generate your signal or later by XTRX itself. How far you can move your transmit/receive frequency from the central frequency is limited by the configured sample rate. E.g. for a sampling frequency of 100 MHz you can shift your transmit/receive frequency by 50 MHz above or below the central frequency.