Homemade Antenna Tower

#14

January 16th 06, 02:44 AM posted to rec.radio.amateur.antenna

Richard Harrison

Posts: n/a

Homemade Antenna Tower

Techmanx wrote:
"How high should my tower be for my vertical sector with antenna?"

Assuming line-of-sight is needed, the distance in miles to the horizon
over smooth earth is: the square root of twice the antenna slevation in
feet. You may want to add to the calculated height to allow first
Fresnel zone clearance at the path grazing point.

Best regards, Richard Harrison, KB5WZI

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