History
In the early days of radio, an operator, technician or electrical engineer was required to attend to a transmitter at any time it was operating or capable of operating. Any condition (such as distorted or off-frequency transmission) which could interfere with other radio services would require immediate manual intervention; facilities also had to be monitored for any fault conditions which could impair the transmitted signal or cause damage to the transmitting equipment.
As technology improved, transmitters became more reliable, and electromechanical means of checking and later correcting problems became commonplace. Regulations eventually caught up with these advances, and radio stations (both broadcast and non-broadcast, such as amateur radio repeaters) were allowed to run unattended provided that there was such an ATS installed.
Read more about this topic: Automatic Transmission System
Famous quotes containing the word history:
“Every literary critic believes he will outwit history and have the last word.”
—Mason Cooley (b. 1927)
“When the history of guilt is written, parents who refuse their children money will be right up there in the Top Ten.”
—Erma Brombeck (20th century)
“It would be naive to think that peace and justice can be achieved easily. No set of rules or study of history will automatically resolve the problems.... However, with faith and perseverance,... complex problems in the past have been resolved in our search for justice and peace. They can be resolved in the future, provided, of course, that we can think of five new ways to measure the height of a tall building by using a barometer.”
—Jimmy Carter (James Earl Carter, Jr.)