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!

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

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!


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

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.

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 :)

Deja Vu Guy,
Oct 16, 2015, 12:37 PM