自動追尾方式ロラン受信機(日本航海学会第28回講演会)

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タイトル別名
  • Auto-Tracking System Loran Receiver
  • 自動追尾方式ロラン受信機
  • ジドウ ツイビ ホウシキ ロラン ジュシンキ

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抄録

Recently, the Loran Navigation Method which is one of the Radio Navigation Methods used by the ships, has shown rapid prevalence, and ships which are epuipped with the Loran Receiver have indicated a tendency of doubling in number, year by year. Consequently, the Loran Receiver began to exhibit a tendency of becoming automatic, of course. In order to meet with this new trend, the writers have made research on the automatic type Loran Receiver for the past few years, and have finally succeeded in completing an Auto-Tracking System for Loran pulse. The outstanding characteristics of this Auto-Tracking System Loran Receiver compared with the conventional Loran Receiverr used hitherto, is the fact that it has the functional circuits shown below: (1) Automatic Synchronized Circuit for the signal. (ASC) (2) Automatic Gain Control Circuit which controls the signal amplitude of the Master Station and the Slave Station. (AGC) (3) Circuit for synchronizing the radiowaves of the Master Station at a fixed position, at all times. (AFC) (4) Circuit for tracking the radiowaves of the Slave Station at a fixed position, automatically. (ATC) Since the above circuits are used, the Loran signals are selected at the left end of the pedestal, automatically, and the wave forms are superimposed immediately. It also gives a digital indication of the Loran time difference, automatically. In addition to the above, if the station selection of the Loran pulse is made, the change in the Loran time difference caused by the movement of the measuring point will be continuously and automatically traced, and indicated.

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