[CQ-Contest] Stubs

[Joe]

Getting ready for Field Day here.

The only bands we seem to have problem on are 40 & 20 with the two 
stations hearing each other.

So plan on making up a pair of stubs, for each station.

Now from wat i have found seems pretty simple.  and will this actually 
be correct?

It looks like the 1/4 wave (electrical) on 40 un shorted will block 0 an 
pass 20  yes?

and the exact same stub shorted will pass 40 and block 20  yes?

so adding at the far end a small SPST toggle switch should make a easy 
switch 20 or 40 stub  yes?

Now I plan on using them in the usual manner right at the rigs with a 
"T" connector.

To make them we plan on using a MFJ 259B

The way they say to make a stub using it is pretty plain and straight 
forward and easy, "BUT"........

I'm assuming I should include the "T" when making the stub to have it 
include the extra length it is making.

Now what do I do with the open end of the "T"?

does it need to me terminated? like with a 50 ohm dummy load? o9r left 
open is ok, or what?

Anyone?

Joe WB9SBD

For Field Day The Yellow Thunder Amateur Radio Club
WB9FDZ
The field Day Zombies

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