wrote in message
oups.com...
If the antenna is amplified, you can play all sorts of games down
stream. If not, I would just, as Spike Lee says, "do the right thing."

Since the length of the open end of the T is very short, it probably
won't matter much. A common trick is to make a notch filter by
inserting a T then putting an unterminated coax on the T that is a
quarter wave length (I think) of the frequency you want to notch.

Note that the notches made with a single stub are rather broad and even more
important is the fact that it will also notch 3X, 5X, 7X etc the
fundamental.
So, if one places a 1/4 wave open stub at 1.5 MHz to reduce an AM station,
notches will also occur at 4.5MHz, 7.5MHz, 10.5MHz, etc. i.e. a real mess.

Dale W4OP