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Old December 28th 08, 08:58 PM posted to rec.radio.shortwave,rec.radio.amateur.antenna
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Default Shortwave Radio Listener (SWL) Antennas -versus- Amateur RadioAntennas

Dave wrote:

...
The advantage of a physical height (antenna length) between 180 and 215
degrees (see previous post regarding the magic number being around 195
degrees) is improved take-off angle and reduced skywave-groundwave
interaction, not dramatic nearfield voltage increases.


As I previously stated, works nicely on paper/software; in real life, I
have not been able to construct an antenna which demonstrates an
advantage to justify the difficulty of dealing with the extra length.
Now, a 2m on down, why not "toss it on", just in case?

Now, when loading a 1/4 wave physical length antenna to a 1/2 wave
electrical length, I DO see an advantage, increased radiation
resistance, minimal counterpoise required, etc. Even when taking into
consideration the losses added by the coil ...

Regards,
JS
 
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