[TowerTalk] EFHW

Tom Osborne w7why1 at gmail.com
Sat Jul 15 17:36:19 EDT 2017

Thank you for your dissertation on end fed antennas.  Maybe you missed the
point that I want this for camping and portable, quick to set up antenna.
I have beenbuildng antennas for a long time.

First one I put up was in 1954 when I got licensed.  I pretty much know the
theory behind end fed antennas as I have used them before.  Had one I used
with my Globe Chief that had RFl over the place

There are antennas that work much better than the EFHW but it is what I
want to use for camping.  73

On Jul 15, 2017 2:06 PM, "Wilson Lamb" <infomet at embarqmail.com> wrote:

It's interesting that hams have been using end fed wires since the
beginning, without fanfare, often after being told they were hard to use
and a poor choice.
Now someone has christened them EFHW and  they are popping up all over the
place, and especially in the marketplace!
I've been using them for 60+ years now, with reasonable success, always
with some sort of tuner.
Hacking up a magic UNUN and hoping it will match a wildly varying
impedance, on multiple bands, seems a stretch only a marketer would love.
Remember, if it's broadband it's lossy.  Have we forgotten the magic B&W
dipole?  Helpful resistors were hidden in the center connector to make it
look better.
A little parallel coil and variable cap, link coupled to your rig, will
work fine, with a little tweaking.
An itty bitty T network tuner even better.  It's not as small as the UNUN,
but it will match almost anything almost anywhere!
And they are often cheap at hamfests, if you aren't in a hurry.
An evening with the Handbook and an evening of building would put you in
great shape, if you want to learn some (or some more)  nitty gritty.
My only recent trouble with end feeding was when I had insulation breakdown
and burned a hole in the aluminum cladding of my shack window.
I was not operating QRP!

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