http://elecraft.85.s1.nabble.com/PAR-LNR-EFHW-antenna-tp7637237p7637254.html
> the End Fed Half Wave Antennas group on Facebook,
> started by N4LQ, Steve Ellington,
> promotes the use of a 49:1 transformer
>
> Steve does have a couple of videos on Youtube where
> he shows you him making one of these transformers
>
> check out how to build one,
> image is on Elgin Amateur Radio Society's website
> <
https://elginradio.files.wordpress.com/2017/10/49-1-unun.jpg">
>
> List of vendors of these if you do not want to build your own
>
>
> 49:1 Transformer Vendors
> -------------------------------------
>
> myantennas
>
http://myantennas.com/wp/>
> hyendcompany
>
https://www.hyendcompany.nl/>
> balundesigns
>
http://www.balundesigns.com/>
> MFJ
> MFJ-1982LP/MP/HP, MFJ-1984LP/MP/HP
>
http://www.mfjenterprises.com/>
> packtenna (QRP only)
>
http://packtenna.com/>
> communicationworld
>
https://www.communicationworld.nl/antennes_end_fed_zelfbouw>
>
> 2017.10.12 Al VE3GAM
>
> al ve3gam
>
>
>
> --------------------------------------------------
> From: "K9MA" <
[hidden email]>
> Sent: Monday, January 08, 2018 8:39 PM
> To: <
[hidden email]>
> Subject: Re: [Elecraft] PAR/LNR EFHW antenna
>
>> On 1/8/2018 16:59, Rich Arland wrote:
>>> Failing that path, has anyone hooked an EFHW to the internal ATU
>>> with good results? I would also include a cut to frequency ground
>>> radial that I would lay out below the antenna. That would be the
>>> easiest thing and simple to employ.
>>
>> That definitely will not work: The impedance of the EFHW is much to
>> high for any internal ATU to match. The 64:1 balun may work, though
>> I haven't tried one. QRPKITS has a QRP tuner, but it works only on a
>> single band. Most any of the external antenna tuners will work,
>> though they may be lossy.
>>
>> The best solution, I think, is to build your own L-network tuner.
>> One coil, a 3-position switch, and one variable capacitor. You don't
>> have to get a perfect match, just within the range of the internal
>> ATU, like 3:1. Once you find the right coil tap positions, the
>> internal ATU should be able to handle the small mismatch with
>> different antenna installations, etc.
>>
>> It may seem like a lot of trouble, but if you can match the EFHW,
>> it's just about the most effective simple wire antenna you can use.
>>
>> 73,
>>
>> Scott K9MA
>>
>> --
>> Scott K9MA
>>
>>
[hidden email]
>>
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