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The Shape of FM Signals

Back in the 50's / early 60's, legendary TV artist John Nagy (sp?) used to do a show on art, and how three-dimensional artwork was traced to only a handful of basic geometric shapes.
A sphere ... a cube .... a cone ....

Now, after my largely unenlightened DXing days in high school, I came to consider the shapes of AM stations to be like balloons with the bottoms missing because the station was on the ground. Thus, the usable signals of omni stations would be in the shape of hemispheres.
And the shapes of directional stations would be like those pinched carnival tube balloons you'd see formed into the shape of animals, with ears and feet and noses and tails. Still, those signals would be sitting on the ground, and measurably would resemble let's say, a cluster of rounded-roofed quonset huts all joined together.

@$$uming my perception is somewhere near correct :
What would an FM signal look like if it were possible to fill its main-contour signal with some form of visible die, like red or yellow?

A hovering bagel? A permanent raining cloud or maybe an umbrella? A pear?
Other?
 
... What would an FM signal look like if it were possible to fill its main-contour signal with some form of visible die, like red or yellow? A hovering bagel? ... Other?

Below to illustrate this in a conceptual way is a graphic showing the radiated field intensities of the very low-power transmit system for the propagation environment defined there. Its e-fields vs. their heights above Earth and their horizontal distances from the radiator are shown in various colors keyed to the color legend at the left side of the graphic.

This doesn't show all of the radiation from the transmit system. If it did, comprehending exactly which field values exist at given locations/heights AGL in its useful coverage area would be "very difficult."
Part15-FM-FI-vs-Elev.gif
 
Back in the 50's / early 60's, legendary TV artist John Nagy (sp?) used to do a show on art, and how three-dimensional artwork was traced to only a handful of basic geometric shapes.
A sphere ... a cube .... a cone ....

Now, after my largely unenlightened DXing days in high school, I came to consider the shapes of AM stations to be like balloons with the bottoms missing because the station was on the ground. Thus, the usable signals of omni stations would be in the shape of hemispheres.
And the shapes of directional stations would be like those pinched carnival tube balloons you'd see formed into the shape of animals, with ears and feet and noses and tails. Still, those signals would be sitting on the ground, and measurably would resemble let's say, a cluster of rounded-roofed quonset huts all joined together.

@$$uming my perception is somewhere near correct :
What would an FM signal look like if it were possible to fill its main-contour signal with some form of visible die, like red or yellow?

A hovering bagel? A permanent raining cloud or maybe an umbrella? A pear?
Other?
Sidebar: I used to watch "Learn to Draw" with Jon Gnagy on Saturday mornings but had completely forgotten about the connection you make to basic geometric shapes. Thank you for that.
 
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