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The ADF−60A is a remotely mounted ADF receiver that provides relative bearing between the aircraft and the selected ground station. The ADF−60A also provides an output to the aircraft audio system for verifying the station identifier and for AM reception. Part of the Collins Pro Line II Comm/Nav/Pulse system. The ADF−60A Receiver is completely solid state and contains no moving parts. The receiver contains all frequency,tuner, instrumentation and logic circuits required to convert the radio frequency input from the ANT−60( ) Antenna into bearing information and an audio output when used in the ADF function, or into an audio output when operating in the ANT function. A TONE mode is provided for CW reception. The ADF-60A Receiver contains an AC synchro driver board as part of the front panel assembly. The ADF-60A allows for detection to demodulate bearing signal for reduced bearing errors and safety hazards caused by adjacent channel signals.
Th ADF-60A eliminates all electromechanical components found in older ADF systems and features modular construction for streamlined bench test service. The ADF-60A receiver employs conventional three-wire AC synchro outputs for use with standard RMIs. An optional dual element antenna, the ANT-60B, is also available to further simplify the installation of dual ADF-60A systems. This antenna combines both loop and sense functions for two ADF-60A systems within one housing. The ADF−60A Receiver is constructed as a 3/8−ATR low−profile case that measures 89 (h) × 91 (w) × 356 (l) mm (3.5 (h) × 3.6 (w) × 14.0 (l) in). All dimensions are nominal. The receiver weighs 1.91 kg (4.2 lb) maximum and is mounted in a 390R−19 or UMT−12 mount with or without vibration isolators. The unit is painted black to conform to requirements of FED−STD−595.