Topband: Modeling "Ground" and losses

[Richard Fry]

>Their Fig. 7 shows results of simplified (manual) calculations, not 
>measurement results.

Quoting from page 771 of the BL&E paper on ground systems:

"The current in the buried wires was measured in each case. This
was accomplished by placing a coil next to the ground wire at a point
where the wire was exposed. The coil was resonated by means of a
small shunt condenser. The voltage across this combination was de-
termined with a vacuum tube voltmeter. The combination was cali-
brated in the laboratory. Fig. 24 shows the procedure in question.
This measurement yielded the current in a single wire. To obtain the
current flowing in all the buried wires at distance, x, the measured
value was multiplied by the number of wires."

R. Fry