LANE NUMBER SETTING OF DECCA NAVIGATION RECEIVER

摘要

PURPOSE:To achieve a fully automatic setting of a digital indication value in a lane display section by comparing a reading of a fraction meter given in a unit of a centilane with an indication value based on the first digit of the fraction in the lane identifying system when the digital indication value is initialized. CONSTITUTION:A lane identifying circuit system 1 performs the lane indentification based on a signal of a frequency f obtained from a multipulse received by a receiving section 10 having an anttenna and a signal of a frequency 6f obtained in receiving a transmission signal of a master station. A time series signal drives a lane identification meter 3 through a decoder 2 to indicate the lane member to the first digit of the fraction. For example, the output of a line P drives a digital display section 8 of a phase meter through a lane identification switching circuit 4 to indicate the lane number and the fraction between lanes is indicated on a fraction meter 9 in the centilane unit. When initialization is made in the indication section 8, the reading of the display section 9 is compared with a fractional value of an identification meter 3 and an 1 is added or subtracted from a reading at an integer section of the identification meter 3 to minimize the difference in setting at a counter 6.