17 Feb
2006
17 Feb
'06
9:20 p.m.
Sounds a little off. Cables are important, with
impedance varying
with diameter, _Terminators_ are important, coming in the 50, 75
Ohm varieties mentioned, but the connector itself being 50 or 75
Ohm? First I've heard of this.
True and important. Using the wrong impedance connector or cable end
will cause a (sometimes insignificant) missmatch. The bigger problem
though is that mating a low impadance plug with a high impedance socket,
e.g. 50 ohm -> 75 ohm, will probably damage the socket due to the larger
internal conductor diameter of the plug. Mating a high impedance plug
with a low impedance socket, e.g. 75 ohm -> 50 ohm, will probably give
a poor contact due to the smaller inner conductor diameter of the high
impedance plug.
Lee.