[Elecraft] 125' EFHWA (was: long wire balan)

[Ron D'Eau Claire]

I think it must have been self defense by someone. Some time back I gave up
using the term "dipole" because the current crop of Hams seems to think that
means a center fed antenna of some arbitrary length, rather than an antenna
that is exactly 1/2 wave long and which might be fed anywhere. 

So I gave up and started saying that I had a half wave antenna fed at the
center, or at the end or off-center, etc.  

But, since I like others to understand what I'm saying, I avoid acronyms. 

I take it the coupler at: 
http://www.qsl.net/aa5tb/coupler.html

Is for QRP only! At 50 watts or so, I used to get flash-over in a wide
spaced air variable in that circuit. I used  a large "Air Dux" coil with it.
The voltages present at the end of a dipole are huge at any significant
power level. I can't imagine the wire insulation on a toroid or a poly cap
withstanding more than a few watts of RF there. 

Ron AC7AC


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Trev - K6ESE

> These abbreviations drive me nuts!

Me too sometimes ;-)

EFHWA - End Fed Half Wave Antenna - Some examples found on the web:

http://www.qsl.net/aa5tb/efha.html
http://www.qsl.net/aa5tb/halfwave.html
http://www.g3ycc.karoo.net/endfed2.html
http://www.qsl.net/aa5tb/coupler.html
http://www.g3ycc.karoo.net/endfed.htm

This is my choice for portable work where I have 1 support...performs quite
well...

73's Trev - K6ESE
http://www.qsl.net/k6ese
dit dididit dit  dit dit