Loran-C alignment method

摘要

An alignment procedure to insure the proper and faithful reproduction of the automatic control loop SERial DAta (SERDA) instructions issued by the Pulse Amplitude and Timing COntrol Unit (PATCO). This reproduction takes place during high level, multipulsed, radio frequency energy transfer to the antenna system. The precise reproduction of the low level digital pulse shape and timing instructions will insure that the transmitter set is operating within the constraints of the International Telecommunications Union for radio transmissions and the specifications which govern the original design during "automatic operation" at a specified Envelope to Cycle Difference (ECD). The alignment procedure once accomplished allows for a simplified monitoring technique, to insure continued proper operation. This monitoring and correction routine can be accomplished using personnel of less technical expertise and test equipments of less complexity and cost.