Sidssp - Signal reflections are caused by length. For very short distance there is no transmission line effect. We have transmission line at about <8x ratio between signal travel time and rise/fall time. Signal travels 0.5m at about 2ns and rise/fall times are often in range of 20ns - we don't even have transmission line. If cable in question would be 1m or slew rate would be higher (good transport) then go with 1.5m to make impedance boundaries reflections (if any) come after transition.
Mike - at these frequencies signal travels on the surface only (skin effect) and many copper cables are already silver plated for that reason. I would pay more attention to shielding (braid and foil) and connectors. If you build cable yourself and one side has RCA connector then find one that is 75 ohm.
Mike - at these frequencies signal travels on the surface only (skin effect) and many copper cables are already silver plated for that reason. I would pay more attention to shielding (braid and foil) and connectors. If you build cable yourself and one side has RCA connector then find one that is 75 ohm.