[Elecraft] EFHW

[Bill Frantz]

PackTenna <http://packtenna.com/> has a end fed half wave 
antenna with a 50:1 transformer called the PackTenna Mini:

"This compact wire antenna is ideal for SOTA activations, 
camping, backpacking, and travel. The PackTenna Mini End-Fed 
Half Wave Antenna combines a 50:1 UNUN, winder and antenna wire 
in a compact unit that is quick to set up and take down. The 
antenna comes with 40' of 26 AWG copper clad steel wire with a 
great "silky" jacket to minimize wire tangle. You can cut the 
wire to any band from 20 meters and up in frequency. You can add 
additional wire for lower frequency bands as well. This is a 
single band antenna and does *not* require a tuner."

73 Bill AE6JV

On 2/8/17 at 4:54 PM, ron at cobi.biz (Ron D'Eau Claire) wrote:

>As others pointed out, to get any real benefit from the EFHW it 
>needs to be a real half wave or very close to it, necessitating 
>a transformer to shift the impedance into range of the ATU or a 
>purpose-built matching network (tuner). Shifting the length 
>from a half wave simply turns the wire into a "random wire".

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Bill Frantz        | "I wish there was a knob on the TV to turn 
up the
408-356-8506       | intelligence.  There's a knob called 
"brightness", but
www.pwpconsult.com | it doesn't work. -- Gallagher