[BVARC] End fed sloper

mark janzer k5mgj at yahoo.com
Wed Aug 21 07:40:40 CDT 2024


 Also, check out:
https://www.earchi.org/92011endfedfiles/Endfed6_40.pdf

    On Wednesday, August 21, 2024 at 07:23:20 AM CDT, David Holden via BVARC <bvarc at bvarc.org> wrote:  
 
 If you are trying to build an end feed half wave (EFHW) antenna, the length is in the name. A half wave at 40m is ~66 feet. Start with 67 feet and fold back the end until you get a good SWR.  You need a 49:1 transformer on one end to get the impedance down to 50 ohm and to connect your coax. Mine is resonant at 10 through 40m.

David WJ9O 


> On Aug 20, 2024, at 11:54 PM, Suggs, Marvin (KTRK-TV) via BVARC <bvarc at bvarc.org> wrote:
> 
> Hey everybody
> I’m looking for a diagram and dimensions for a 40 meter end fed sloper antenna. Not having much luck on YouTube.
> Thanks
> Marvin
> N5RKW
> Sent from my iPhone
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