[Elecraft] Multiband end-fed dipole with KX1

[Doug Person]

I have had success using an End-fedz multi-band antenna for 40 and 20.  
The same concept would work to add 30 meters as well.  The End-fedz uses 
a stub to achieve resonance on 20 and the full length for 40.  Another 
stub for 30 should work just fine.  They are made and sold by PAR 
Electronics <http://www.parelectronics.com/end-fedz.php>

I use on regularly on 17 meters  and its performance is 
indistinguishable from a dipole.  PAR Electronics also sells a 3 band 
model for 40, 20 & 10.  They are well made and reasonably priced.

I bought a bunch of big toroids and I intend to see if I can make some 
that will handle the output from the KPA500. That will be a summer project.

Of course, you can build you own for peanuts if you have a suitable 
toroid and some wire.

73, Doug -- K0DXV

On 2/22/2014 10:09 AM, Jim Brown wrote:
> On 2/22/2014 2:59 AM, PGSchreier wrote:
>> I would like to find a 40/30/20 meter end-fed dipole I can run with 
>> my KX1 and its tuner. (I'm not crazy about linked dipoles for a 
>> number of reasons.)
>
> I have an excellent design for an end-fed SINGLE BAND half-wave 
> dipole, but I can't think of a good way to do it for multiple bands.  
> See the slides near the end of my talk on elevating vertical antennas 
> at http://k9yc.com/publish.htm  You can build it for about $15 for 
> QRP. To handle 100W, you'll need a bigger ferrite core for the choke 
> that will raise the cost by about $10.
>
> You can go to the hardware or electrical supply store and buy a spool 
> of wire, toss a length of it into a tree or tie it to something on 
> your house, toss another length into another tree or something on your 
> garage, and load that as an antenna.  The tuners in Elecraft rigs will 
> match antennas like that very well.
>
>> Are you familiar with any end-fed design that will handle all three 
>> bands well?
>
> No.
>
>>
>> For instance, does anyone have any experience with the EndFed 40-6m 
>> Antenna from W1SFR? http://kx3helper.com/endfed-40-6m-antenna/
>
> This is what we call back home in WV where I grew up "a pig in a 
> poke."  There's nothing on this webpage except testimonials from new 
> hams who appear to be technically illiterate. When someone tries to 
> sell you something without telling you what it is, run like hell in 
> the other direction.
>
> 73, Jim K9YC
>
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