Michael J. Coslo wrote:
On Mar 3, 2:28 pm, KC4UAI wrote:

Does somebody know the maximum efficiency of a 1/4 wave vertical and
how does that compare to 95%? (Even with almost perfect ground
resistance?)

It's right up around there.

Anyhow, if they have managed to make this antenna extremely efficient,
what they must have done is make the RF resistance not become much
lower as the physical size goes down. Some other possibilities are
that they somehow managed to make the Velocity factor really low,
maybe 25 percent.

That's exactly what is being experimented with; materials that make the
velocity factor low.

Now how you do this without getting big losses in that material, I haven't
a clue, but evidently some people think they can do it.


--
Jim Pennino

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