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15.219 (b) “The total length of the transmission line, antenna and ground lead (if used) shall not exceed 3 meters.”
That is the most often quoted rule of them all, but also the most misunderstood. Let me explain.
The sentence is a condensed form of legal scripture which, if more fully expressed, says:
“The total length EACH of the transmission line, antenna and ground lead shall not exceed three meters.”
Most readers have erroneously thought it to say:
“The total length COMBINED of the transmission line, antenna and ground lead shall not exceed three meters.”
Still, in continuing with previous posts, it says NOTHING about horizontal ground wires nor ground at all, refering only to a ground lead, which is not the same thing as ground.
Ground may be defined as any physical material on the surface of or buried in the earth, but the term ground also applies to buildings made of earth materials which can be viewed as man-made mountains, hills or cliffs.