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Dipole Antenna Mounting

edfiero

Active Member
Jul 15, 2010
85
48
28
Couple of questions about mounting a dipole antenna...

Is there a minimum mounting height for a dipole? Obviously with any antenna the higher it is the better, but outside of this, is there a minimum height for it to be mounted so that it radiates properly and/or the ground doesn't interfere with it??

The antenna is currenly hanging horizontally about 12 feet off the ground. I am receiving local stations with vertical antennas pretty well. I had expected this horizontally mounted antenna to attenuate vertically polorized signals while optimizing 'flat side' stations. Since the antenna is acting more like a vertical I am wondering if I am over estimating the attenuation effect or whether or not it really is behaving like a vertical because it is not high enough off the ground. Related to my first question, is there a minimum height before I see it act like a horiztonal antenna?

Thanks
 

It won't start to act like a textbook dipole until you get it at least 1/2 wavelength above ground and well away from trees, towers, buildings and other obstacles to the signal. This applies to all dipoles, regardless of frequency. At 11 meters, a half wavelength is only about 18 feet; at 160 meters it's a bit trickier.

And higher is better.
 

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