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Tape Measure Yagi

Parts list

-3 feet of 1/2 inch schedule 40 PVC pipe
-3 - 1/2 inch schedule 40 cross connectors
-2 - 1/2 inch schedule 50 caps
-1 - inexpensive tape measure (I used a 5/8 inch wide tape, but a 1 inch wide will be better)
-4 feet coax cable with a connector on one end (UHF, BNC, SMA, etc.) and the other end prepared for soldering
-6 - #12 (11/16 inch to 1 1/4 inch) hose clamps (You may buy a bag of 10 and save money)
-Black electrical tape
-5 inch piece of solid wire for hairpin tuning component (12 to 18 gauge will work)

Tools Needed

-Hacksaw or PVC pipe cutter
-Soldering iron or gun
-PVC cement
-Electronic solder
-Wire cutter
-Flat blade screw driver or 5/16 inch nut driver (to tighten hose clamps)

Bring your parts to project night and we'll help you solder all the parts together. Gideon Kohler KJ6ZBJ is our resident J-pole expert and is always happy to help you out. If you want to make a J-Pole, give us some advance notice so we can make sure that Gideon can be there.

The elements are constructed from an old tape measure. 1 inch is best at the elements will keep their shape in the wind. 3/4" also works

The frame is a piece of PVC tubing with a couple of crosses to mount the elements on. Elements are held on with hose clamps.

Step 1

Cut an 11 1/2 inch, a 7 inch, and two 5 inch pieces of PVC pipe. Before cutting the pipe, it might be helpful to measure and mark the length using a sharpie black marker.

Step 2

Glue an end cap on each 5 inch (short) pipe.

Step 3

 

Glue the two long pipes together using a cross connector (as pictured).

Upcoming...

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Antenna Romance

Two antennas met on a roof, fell in love and got married. The ceremony wasn't much, but the reception was excellent. Since they were a perfect match, soon they generated harmonics. Wrapped the harmonics in dipoles. But later the harmonics turned out to be parasitic elements. The true story -- she was a tri-bander and he felt trapped, so they went on separate beam headings

Contact Us

Del Norte Amateur Radio Club - W6HY
1672 Northcrest Dr.
Crescent City, CA 95531
United States
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