[Elecraft] EFHW

[Kevin - K4VD]

I work portable with about 1 ft of coax to my end-fed. Never really had a
problem making contacts. Guess I could do a lot better with a longer coax
or with a counterpoise?

Kev - K4VD

On Thu, Feb 9, 2017 at 5:22 PM, Doug Person <doug at k0dxv.com> wrote:

> I am feeding my end-feds with over 100 feet of coax and they work just
> fine.
>
> Doug - K0DXV
>
>
> On 2/9/2017 1:21 PM, K9MA wrote:
>
>> Well said, Bill!
>>
>> 73,
>>
>> Scott  K9MA
>>
>> On 2/9/2017 10:39, Bill Leonard N0CU wrote:
>>
>>> The reason your antenna was a lot less finicky with a bit of coax is
>>> that the
>>> EFHW antenna requires a return path for the RF field. Theoretically,
>>> without
>>> a return path, the antenna won't radiate at all. The recommended setup
>>> for
>>> this antenna is for a .05 wavelength counterpoised to be used. EZNEC
>>> models
>>> indicate that there is little benefit to going much longer than .05
>>> wavelengths, and a quarter wavelength is actually less effective than the
>>> shorter lengths.  If no counterpoise is used, then coax shield becomes
>>> the
>>> counterpoise by default.
>>>
>>> Bill  N0CU
>>>
>>>
>>>
>>>
>>>
>>
>>
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