End Fed Zep

[N8CHR]

I just purchased an MFJ End Fed Zep. " I know I could have just as well build one but have several projects going at once.
Question: What the best way to hang this for best performance? I have several tall trees over my house. Could I put one end in a tree and tie the other end off the roof?
 Any ideas, please
 Thanks Tom N8CHR

[KB3TXH]

My home brew E.F.Z. works well enough with the far end tied to a tree, and the near end, parallel feed, run up a set of surplus fiberglass poles, next to the house.

The half wave end fed I tried first (with a single feed wire into the house) gave me a lot of RFI.

[W5DXP]

Remember to keep the ladder-line about 6" away from metal and install a good 1:1 choke on the coax at the coax/ladder-line junction.

[WX7G]

What ladder line to coax junction? The ladder line should be run all the way to the tuner.

[W5DXP]

What ladder line to coax junction? The ladder line should be run all the way to the tuner.

He didn't say what frequency the MFJ Zepp is for but 1/4WL of ladder-line may not be enough to reach the shack. In addition, the MFJ end-fed Zepp is like a J-Pole. The 1/4WL ladder-line is shorted at the bottom and is tapped at the 50 ohm point above the short. Coax is expected to be connected at that 50 ohm tap point and I recommend a 1:1 choke on that coax.

[WX7G]

Now I see. That is an interesting way to build a Zepp.

[W5DXP]

Now I see. That is an interesting way to build a Zepp.

It ensures that the MFJ Zepp will have a feedpoint impedance of 50 ohms, something that the traditional Zepp design cannot guarantee.