Accordingly, if one side of the double loop is Earthed, we then have an arrangement which radiates waves.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
We may think of them as two identical lightning conductors, well Earthed at the bottom, and supported by non-conducting masts or towers.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
It will be noticed that the receiving aerial may be arranged in one of two ways-it may be either Earthed at the lower end or it may be insulated.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming