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Old February 15th 08, 05:52 PM posted to rec.radio.amateur.antenna
Michael Coslo Michael Coslo is offline
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First recorded activity by RadioBanter: Jun 2006
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Default Vertical Antenna Performance Question

AI4QJ wrote:

I suspect that the EZNEC program is not designed for taking into account
such "rare" phenomena as "ground wave propagation". So much for EZNEC
analysis at 75m.



My own experiments with vertical vs dipole led me to the conclusion
that they both work better than the other, and they both work worse than
each other.

I based my analysis on signal strength using a db pad to match for the
weakest signal vs the strongest one. You can't do this one with just the
S-Meter, they aren't very accurate.

Sometimes the vertical "worked" better, and sometimes the horizontal
did. And while a generalization could be made for distance, therefore
"take off angle" between the two antennas, the reception could change
in the middle of a QSO, favoring one other the other.


Comparing one antenna against another is quite difficult - at least to
say which one "works" better.

And I'm curious - where is the propagation function in EZNEC?


- 73 de Mike N3LI -