Posted: 3/29/2012 4:17:27 PM EDT
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At 31' it seems to do good 40m and up.
[youtube]http://www.youtube.com/watch?v=uWkpQ785Pjo&feature=youtube_gdata_player[/youtube] |
Here's a better link to the video.... 
End Fed Half Wave Vertical Thanks for sharing!!! |
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Quoted:
So where to buy the stuff to make a 9:1 unun? Im pretty set on this antenna. 9:1 for $29.99 eta: sry that is a BALUN here is an UnUn BYO 9:1 |
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Quoted:
Quoted:
So where to buy the stuff to make a 9:1 unun? Im pretty set on this antenna. 9:1 for $29.99 sry that is a BALUN I found this I just need to find a place to order the thirod. Question 2 if you wanted to use this as a end fed horizontal wouldn't the counterpoint make it a dipole? |
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for $44 delievered (per the video and the website)
http://www.earchi.org/92011endfedfiles/Endfed6_40.pdf ORDERING A COMPLETED MATCHBOX FROM EARC
Volunteers at the Honolulu Emergency Amateur Radio Club (EARC) carefully assemble these HF matchboxes for those who prefer not to build one. The club will build one for $44 including USPS priority mail shipping anywhere in the U.S. A 30 foot 20 gauge antenna wire is included. The coaxial feed cable is not included and must be provided by the user. Proceeds go to the club to promote amateur radio activities. To order, make payment via PayPal, to our fundraising chairman [email protected] for $44 for each assembled matchbox. Be sure to include your name and mailing address in the remarks section with the PayPal remittance. We will ship promptly and you will likely receive the order in 7 days or less. If you have any questions about the matchbox or your order, please email Mr. Hanebuth at [email protected]. |
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It sounds like an Antron 99 or Imax 2000 antenna.......they use the same idea.
End Fed Vertical |
| Once the cores get here im going to knock this out. Is there any way for me to measure the impedance with my multimeter to make sure i have 50ohms going to the radio? Would i just hook everything up then jump across the shield and hot wire of the coax at the radio? |
| Can't measure impedance with a DMM, but you can replace the end fed wire with about 4.7K ohms and check the build with low power and a VSWR meter or use an MFJ 259B.The 4.7K ohm resistor will make a pretty good approximation of the end fed wire. I watched the demo, I'd like to know the length of coax between the rig and balun/ UnUn. HTH 73, Rob |