Please find attached the readings at the cables output (RCA cable 50Ohm connected to RCA of Digione) and BNC cable 75Ohm connected to BNC of DigiOne.
Also note that by standard of BNC and RCA , there has to be a termination (50Ohm R in case of RCA and 75Ohm in case of BNC) . Measuring without termination resistor will show distorted signals .(ringing )