A nice 2M antenna (the stealth antenna)

The author lives in a condo, and needed a stealth antenna, so he
decided to try a delta-loop. Trouble is, they have a high impedance, so
he built a 1:9 balun out of a torus and some wire, and the loop.
Here's the details:

Get a torus. I used one from Palomar Engineers' RF Ferrite Toroid
Kit. Included in the kit are the instructions for the transformer.
Take three pieces of wire. Lay the wires side by side. Label one
side with even numbers, and the other with even numbers. Wrap them
around the toroid as a group at least 15 times. Now solder pieces
2 and 3 together, and 4 and 5 together. The 2/3 joint is connected
to the center conductor of a 50 ohm coax. Wire 1 goes to the shield.
Wire 6 and 1 are the output to the loop.

Now cut a wire 79" long. Connect one end to wire 6 of the transformer,
the other end to wire 1. Insulate all connections.

You can arrange the loop in a triangle, a loop, a square or whatever
you like. The wire must reside in a plane, must be stretched out,
and must not cross itself. For vertical polarization, the plane the
wire resides in should be vertical. A circle is the best orientation,
but I've had excelent results with a delta. According to my sources,
this antenna is directional perpendicular to the plane of the wire.

Checks with an el-cheapo 11 meter wattmeter give a 1.5:1 SWR across
the entire 2 meter band. Whether or not that means anything is open
to interpretation :-).

(no, I haven't tried this  WA2ISE)

Nick Sayer  
N6QQQ @ WB6V (packet radio)