I’ve been researching the LimeSDR as a possible means of capturing two signal simultaneously. Here is my problem: I’d like to capture an RF signal with a center around 433 MHz while simultaneously capturing a DC signal.
The DC signal is a GPS 1 PPS signal that I will use to timestamp the 433 MHz signal. Because I want to take advantage of the GPS time signal’s precision, I need to simultaneously capture both of these signals with a jitter of 10 ns or less.
While looking through the API for C (which is my development platform). I found the dual RXTX example for using multiple channels on the Lime SDR. However, since you have to poll each channel separately this introduces a software delay which I would like to avoid.
My question: is this possible with the Lime SDR? I know there is MIMO channel alignment functionality, but I’m unsure of how to utilize it. If this is possible, if you could point me to any resources that would help me in my research, I would be very grateful.