Oliver

Hello, I am looking to buy an Analog Discovery 3 with the BNC adapter board and I am wondering if there is a way to achieve a 50-ohm impedance oscilloscope channel, in addition to the default 1 MOhm channel on the Analogy Discovery 3. I understand the BNC gives additional features, including the option for AC and DC coupling for the oscilloscope channels, and a selectable output impedance for the AWG. Is there another additional board I can purchase to achieve selectable impedance on the oscilloscope channels? Any help regarding this topic would be greatly appreciated! Thanks!