Feed-Through BNC Terminators

[selkathguy]

I was thinking of adding a BNC kit to my DS1000Z order, and I noticed it comes with a "Feed-Through" 50-ohm terminator.
http://www.tequipment.net/Cal-Test/CT4042/?OrderItemId=569664
Is this the same thing as just a regular 50-ohm terminator?  Does the feed-through just pass through what would be reflected?  Not sure what the difference is, and there doesn't appear to be any such verbage on the Wikipedia for BNC.

[johansen]

its the same electrically, as using a "T" to attach a non feed through terminator to the circuit.

some oscopes have a switch to engage an internal 50 ohm terminator.

[selkathguy]

Ok thanks.

[w2aew]

its the same electrically, as using a "T" to attach a non feed through terminator to the circuit.

some oscopes have a switch to engage an internal 50 ohm terminator.

Electrically the same, but will have better performance at higher frequencies.  Useful when you need to properly terminate a coaxial line to 50ohms, and still want to inject the signal into the high impedance input of a scope, frequency counter, etc.