How to Make a Tape Measure Yagi 70cm Beam Antenna DIY

In this video I show how to make a Tape Measure Yagi 70cm Beam Antenna DIY, so you can build your own tape measure Yagi.
CHAPTERS
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0:00 Intro
0:37 Design & Education
2:50 Supplies
4:04 Cut Pipe
4:14 Assembly
7:57 Soldering
8:31 Installed
SUPPLIES
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6ea - 1/2" Cross PVC
1ea - 1/2" "T"
1ea - 1/2"-1" "T"
1ea - 10' 1/2" PVC Pipe
1ea - Metal Tape Measure
1 bag - Tie Straps
1ea - Coax with BNC or PL-259 Connector for Antenna Lead
PVC PIPE CUTS
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6ea - 3" Element Spacers
14ea - 4 3/4" Element Support
1ea - 6" Handle
1ea - 1" x 1/2" "T" Cut in Half for Tower/Antenna Mast Installation
TAPE MEASURE CUTS
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1ea - 13 7/16" Reflector
2ea - 6 3/8" Driven
4ea - 13" Directors
1ea - 12 1/16" Main Front Director

[@OtisDyson]

In this video I show how to make a Tape Measure Yagi 70cm Beam Antenna!!!!

[@NukaVaultReadiness]

Made my first tape measure yagi for 2m about a year ago.
Works like a charm for the shack! Was able to hit a repeater about 55 miles away, although the Rx was iffy.
Great job on the build, and hope you were able to hit the repeaters!

[@OtisDyson]

That is awesome! Glad to hear it! Keep on building my friend!

[@AnDy_ToM22]

Wow! Excellent video, tape measure, ida never guessed. What other homemade antennas could we make?

[@OtisDyson]

Lots of different styles to make. We'll make more.

[@DMF716]

Ive been using a 4 element 70cm yagi tape measure and its getting into a winsystem repeater about 32-35 miles away. It works.
Infact, i just checked the swr today and its 2:0 on 447.975
Next im looking at a 4 element cubical quad for 2 meters.

[@davidelkins571]

What was the length of the hair pin match wire? Great build, im gonna make one

[@9PAT508]

I beleive it has to be < 1/4 wave lenght, Anyone have any idea on how to measure the hairpin ?

[@glevideo]

There's still a question about the length of the hairpin. How is that length determined?

[@HendroSusenoHadiSudibyo]

Why do the inner and outer coax have to be connected?

[@EJ42955]

Just curious, does the metal "mast" you're using have any effect on the antenna?

[@agcreatortn]

I followed the instructions; all pieces are cut correctly. My SWR is a 9:1 at 445 MHz and 1.5:1 at 915 MHz, I am not sure what I did wrong. also, what is your trick to get the solder to stick to the braided shielding of the coax cable, I cannot get a good solder joint. I used 3 13 directors instead of 4 if that makes a difference.

[@EJ42955]

SWR is adjusted by moving the driven elements in or out, at the hairpin.
Also, if you're putting the antenna in the attic, you really don't need the support pieces.