[Elecraft] AX1 dipole

Wayne Burdick n6kr at elecraft.com
Thu Sep 29 07:14:25 EDT 2022


We studied this. To provide any advantage over a vertical AX1 with a single counterpoise wire, an AX1 dipole would have to be well over a quarter wavelength above ground, with both halves tuned to resonance, and fed with low-loss coax and a balun or balanced feedline. Even then the advantage is small and only in the dipole's broadside directions.

That said, a pedestrian-mobile version of the dipole held a few feet above the operator's head would eliminate the dragged counterpoise. I'd be concerned about nearby trees and ogling passersby.

73,
Wayne
N6KR




> On Sep 29, 2022, at 4:05 AM, Rich WC3T <rich at wc3t.us> wrote:
> 
> Interesting idea. 
> 
> 72,
> Rich Hurd / WC3T / DMR: 3142737  
> Grid: FN20is
> Bureaucracy is always in search of self-preservation.  — AA7BQ
> 
>> On Sep 29, 2022, at 04:14, David Gilbert <ab7echo at gmail.com> wrote:
>> 
>> 
>> Has anyone ever tried to used two AX1's back to back as a vertical (not horizontal) dipole?  And if so, how did its performance compare to a single AX1 with the 13 foot counterpoise wire?
>> 
>> Just curious.
>> 
>> 73,
>> Dave   AB7E
>> 
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