A MILLION-CYCLE REPEATER
CD 2055053 E&MP5.020
Designed to operate for weeks at a time without attention, this million-cycle repeater station, placed in a manhole along the New York-Philadelphia route of the coaxial cable, receives its power from the cable.
The equipment in this box, only a little larger than a radio receiver, amplifies the signals received from both cables, and sends them on their respective ways.
Ten miles farther on another repeater station increases the signals to compensate for the losses in the transmission.
Original Caption by Science Service