hight above roof or ground?

February 5th 05, 07:03 PM

Posts: n/a

hight above roof or ground?

Just wondering i am putting a dipole on the roof of a 12 story building
i'll mount it around 30ft off the flat surface of that roof

my antena will be about 150 ft off the sidewalk

when trying to calculate my dipoles hight is it above the roof surface
or 'real' earth /sidewalk ground that 'counts'??

thanks

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