Which of the following derives all the signals needed by the transmitter from the timer?(a) PATCO(b) ECD(c) HCG(d) TOPCOThis question was addressed to me by my college professor while I was bunking the class.My enquiry is from Hyperbolic Radio Systems in section Terrestrial Radio Navigation System of Avionics

Which of the following derives all the signals needed by the transmitt

1.	Which of the following derives all the signals needed by the transmitter from the timer?(a) PATCO(b) ECD(c) HCG(d) TOPCOThis question was addressed to me by my college professor while I was bunking the class.My enquiry is from Hyperbolic Radio Systems in section Terrestrial Radio Navigation System of Avionics
Answer» Right answer is (a) PATCO Explanation: Dual redundant pulse amplitude and timing controllers or PATCO accept timing signals from the timer and derive from this all the signals NEEDED by the transmitter. Signals GENERATED by the PATCO include start triggers, charging triggers, digital amplitude reference signals, amplitude compensation signals, and MEGATRON reference TRIGGER.

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