[SECC] Models

[k4sb@bellsouth.net]

Jerry Montgomery wrote:
> Your apex-up 40 meter triangle data doesn't sound correct.  Thats a
> vertically polarized antenna, and something as simple as this should
> not have that much gain.
> 
> So I also modeled it.  I got a 7 MHz resonance point with impedance of
> 160+j0.6.  Very close to what you got.  However, the max gain is only
> 1.1 dB and occurs at a take-off angle of 23 degrees. This is close to
> that of a vertical, which is approximately what it is.  The only way
> you can get 6 dB of gain out of this antenna is to put it over sea > water.
> Jerry, K4SAV
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Unless I made a typing error, I did NOT specify the gain in db. It was
in dbi. Check your settings in EZNEC.

73
Ed