: If configuring a dual-seat intercom layout, both the pilot and co-pilot microphones must share identical part numbers and manufacturers . Mixing impedance ratings will cause drastic audio volume shifts whenever one microphone is unplugged. 4. Calibration, Post-Install Testing, and Troubleshooting
Note: If you are using a 28V system, ensure your specific unit is rated for it. Most Escort II units are dual-voltage, but some early versions require a dropping resistor. Antenna Installation and Coax Choice
The process of mounting the radio typically involves the following steps:
The Escort II expects parallel (standard for 1970-2000 encoders). It is NOT compatible with RS-232 or ARINC 429 without a converter. narco escort ii installation manual full
Congratulations on purchasing the Narco Escort II, a state-of-the-art navigation and communication system designed for the discerning aviator. This manual will guide you through the installation process, ensuring a smooth and efficient setup.
Check the static line connection if you used an encoding altimeter.
The handles power, ground, and audio processing. Correct pin mapping ensures your microphone and intercom work without volume shifting or audio feedback loops. Key P301 Pin Assignments Pin 5 : Audio Output 1 Pin 6 : Audio Output 2 Pin 12 : Intercom Key Function Escort Intercom Architecture : If configuring a dual-seat intercom layout, both
: Requires sufficient passive or active ventilation clearance within the radio stack to prevent thermal drift. P301 Master Connector Pinout
The information provided here is based on available documentation but does not replace the official, type-certified manual. All avionics installations must be performed by certified repair stations or qualified A&P technicians in accordance with FAA regulations (e.g., FAA Advisory Circular AC 43.13-1B and 2B). Narco Escort II Installation Manual: A Complete Guide
The unit uses a rear multi-pin connector (often labeled P301) for all primary electrical interfaces: AeroElectric Pin Number Wire Detail Power Input (14/28V) 18 AWG Red Airframe Ground 18 AWG Black Low Level Audio Output 20 AWG Green (330 ohm) Headphone Audio Output 20 AWG Blue (50 mW / 300 ohm) Mike Audio 20 AWG Brown Intercom Key 20 AWG Yellow Mike/Phones Ground 20 AWG Black Special Functions An internal intercom function is activated by grounding via an external switch when the mike key line is open. Audio Summing: It is NOT compatible with RS-232 or ARINC
: Procedures for initial setup, system software diagnostics, and critical calibration to ensure navigation accuracy. www.api.motion.ac.in Technical Highlights & Considerations Intercom Capabilities : The manual details how to ground
The Narco Escort II, despite its age, remains a functional backup COM or primary NAV radio for VFR/light IFR use when properly installed. However, the lack of a has grounded many perfectly good units. By securing an authentic, complete manual, you not only comply with FAR 43.13 (Acceptable Methods, Techniques, and Practices) but also honor the engineering that made Narco a cornerstone of General Aviation.
: It lists tolerance levels for altitude, vibration, and magnetic effects, noting that the unit is designed for standard aircraft electrical systems. Legacy Support
For aircraft owners, technicians, and vintage avionics restorers, finding the for the Escort II is critical. This guide provides an overview of what is included in the manual, key installation steps, and safety precautions. 1. What is the Narco Escort II?