: When Pin 12 is grounded and the microphone key line is kept open-circuited, microphone audio completely bypasses the transmitter modulator. Instead, it routes straight into the internal amplifier and outputs directly across Pins 5 and 6.
The Escort II requires two separate antenna connections at the rear of the unit via standard BNC coaxial connectors. Communication Antenna Standard 50-ohm VHF broadband COM antenna.
Up to 15,000 feet without supplemental cooling (though forced-air cooling extends component lifespan). Component Inspection and Tools Required
While functional, it is considered legacy equipment and is often replaced by modern Garmin GPS/Nav units. 2. Contents of the Narco Escort II Installation Manual narco escort ii installation manual full
Coaxial cable stripper and crimper (for RG-58 or RG-400 cable) Digital Multimeter (DMM) Soldering iron (heat-shrink tubing application) Pinout Configuration and Wiring Diagram
Always use MIL-SPEC shielded twisted-pair wire (e.g., M27500 series) for the Microphone (Pin 4) and Headphone (Pin 7) lines.
Standard VOR/LOC horizontal dipole or V-blade antenna. Cable: RG-58A/U 50-ohm coaxial cable. : When Pin 12 is grounded and the
5 Amp or 7.5 Amp aircraft-grade circuit breaker. Environmental Limits Operating Temperature: -20°C to +55°C
If you need help with a specific part of the installation process, let me know: Do you need the exact schematic?
: Use 22 AWG stranded hookup wire for standard audio, microphone, and data signals. ensure you have the full documentation
When is externally grounded through a dedicated cockpit switch while the main transmitter key line remains open, the microphone audio bypasses the transmitter's internal modulator. The internal circuitry routes and amplifies the signal directly through the 50 mW audio amplifier to create an integrated two-place cabin intercom. Both microphones used in this setup must be the exact same model to prevent unexpected audio volume shifting. 3. Antenna Installation and RF Coaxial Connections
Ensure you have all necessary components and tools before opening the aircraft instrument panel. Packing List Narco Escort II Receiver/Transmitter unit Aluminum mounting chassis (tray)
For further technical details or full schematics, you can view the Narco Escort II Pinout Guide provided by AeroElectric. narco avionics escort ii - AeroElectric
Before beginning installation, ensure you have the full documentation, including installation drawings and wiring schematics.
PD2158F_EX_A_11.0.7.45.W30.V000L1_vivo_qcom_LA.UM.9.15.r1-02800-KAMORTA-sm6225_split
