Home › Forums › temp › Part 15 AM legalities, citations, and manufacturers’ advice › Mojoe, regarding ground leads
Total posts : 45366
In technology and engineering there is an expression which goes “known to those practiced in the art” which means that technical terms are understood in technology without the need for definition everytime they are used. For example, if you measure the voltage at an outlet and tell me it is 120 volts it is not necessary to explain to me the meaning of volts. It is also not necessary to explain to those “practiced in the art” the details of measuring the final stage input power in a transmitter to assure it is 100 mw. or less.
The same is true for those “practiced in the art” of radio technology. The length of a ground lead is measured from the device to where it literally enters the earth. That is why it is called a ground. It is my opinion that the FCC is using this terminology in a standard and accepted manner and in your example of a water pipe “ground” at RF it would have to include the length of the pipe to the point where it goes into the ground. The same is true for the ground connection on an outlet. It is not grounded at the outlet, it is grounded at the stake at the service drop.