[Elecraft] End fed antenna - length and SWR

[Ariel Jacala]

My version using the same matchbox is 44 feet long and tunes well 40 - 6 meters and a piece of cake for the KX3.     It is loud on 30m

Ariel NY4G

Sent from my iPhone

On Oct 8, 2013, at 9:40 PM, "Esquer Dave" <dave.esquer at gmail.com> wrote:

> Hi folks, 
> 
> Newbie HF Dave here again with an end fed antenna design question.
> 
> I have an EARCH (Emergency Amateur Radio Club, Hawaii) end fed 6-40 meter multiband HF antenna. Part of the design is the 9:1 UNUN (unbalanced to unbalanced) toroid matching transformer. I have replaced the 30' wire with 66.5 feet of 18AWG Wireman silky 532. My end fed is in a horizontal (slight slope) orientation, east-west. The antenna is about 50' above the ground (I have a 3 story house and pine trees close by).
> 
> I do not have an external antenna analyzer, yet.
> 
> Using the ATU in my KX-3, I have the UNTUNED SRW values below. With the KX-3 ATU, the KX-3 DOES tune all of these bands with no problem.
> 
> Question: Should I do anything to improve QRP performance, shorten/lengthen the wire, or should I just go with the flow, hang loose and not worry and just enjoy my rig?
> 
> REMEMBER, newbie Dave, be gentle. I've been tracking the long wire discussions on the list, there is lots of fervor.
> 
> [My key = frequency/SWR]
> 
> 80m
> 3.50/2.0
> 3.752.9
> 4.0/3.7
> 
> 40m
> 7.0/6.9
> 7.15/6.9
> 7.3/6.9
> 
> 20m
> 14.070/2.9
> 14.2/2.8
> 14.35/2.7
> 
> 15m
> 21.0/2.8
> 21.45/3.0
> 
> 10m 
> 28.0/2.2
> 29.0/1.8
> 29.7/2.5
> 
> 6m
> 50.0/3.0
> 52.0/2.3
> 54.0/3.7
> 
> Thanks in advance,
> Dave
> 
> More static, more of the time …
> 
> Dave Esquer, K6WDE
> dave.esquer at gmail.com
> http://www.daveesquer.com
> 
> 
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