The ZZ Wave Net is a radical
new design in HF antenna's

The ZZ is a
folded dipole bent
into an inverted V loop!!!

Next we pull the ends and 
separate the middle.
This allows us to install 
the antenna in a
city lot on a 64' tower
and still keep the overall 
performance of a
full wave loop antenna!

Then we add the 40 meter 
ZZ loop under the 80 and 
we have the ZZ Wave Net
a dual 40 & 80 meter 
full wave loop antenna!

Here is how it looks 
installed on
a 64 foot tower with 
16 foot end supports 
on your city lot.

80 meter apex to end 		70 feet
80 meter end to feed point	65 feet
40 meter feed point to end	36 feet
40 meter end to bottom		34 feet

apex to feed point			24 feet
feedpoint to bottom			12 feet

end support to end support       105 feet

feed point is 4:1 balun
both loops feed from this point

Construction


Measure wire and lay out at base of tower.

Attach 1 litre bottle half full of water
 to the bottom wire
about 12 feet from the ends on both sides 
of antenna.This is so the wires don't twist 
and so the antenna will have greater tuning range.

Attach apex of antenna to top of tower on a standoff
and preferably with a rope and pulley system.
Pull feedpoint up to 24 feet below apex.

Pull ends out to look like the picture.


Tuning Instructions


The wire length is the first thing to get right.
Use the usual method of (low longer) ie: if the swr is
higher on the low freq then make the antenna longer
and if the swr is higher on the high side then make
the antenna shorter.

Then the next step is the distance between the wires.
the distance between the feed point and the apex is 24
feet @ 80 meters.

The final tuning is done by tightening the wires
from the ends.

Tight ZZ

Loose ZZ

So u get the antenna pulled out to look like the
picture then u can adjust the swr by tightening and
loosening the wires. You will see a great range of
tuning here which is why this antenna design is so
easy to tune.

The best way to do this is to mark the place where the
rope meets the tie off point. ( this is the trick for
tuning this antenna) So, if for instance you have the
rope tied off to a tree. You mark the point where the
rope meets the tree by tying a piece of string onto
the rope. 
This is your marker.

Check the swr. Then loosen the rope so the marker is
about a foot from the tree, Then check the match again. You
will notice that it has changed. Now you can tune to a
point where the match is lowest.
Shorten and lengthen the wire to provide the lowest swr 
within the range that u can loosen and tighten the wires 
for lowest swr and you will find that this antenna will 
match right down flat at the operating freq of your choice :)
Also you may find that the antenna wants to be shorter 
than the normal calculation.This depends on a number of factors
like reflections and hieght above ground.

Tune the 80 first and then the 40.
This antenna also works as an 80 and 20 or 80 standalone,
40 standalone, 40 and 20 etc.

Have fun :)

Here is how it looks all ready to be put up!