If you are looking to install or reinstall this classic unit, following the original technical specifications is critical for both safety and legal compliance. 1. Pre-Installation Requirements
The heart of the installation is the rear 15-pin (or 24-pin, depending on the specific Mod) Molex-style connector. Pin 1 & 2: Ground Pin 3: +14VDC Power Input Pin 4: Pilot Mic Input Pin 5: Speaker Output (usually 4 or 8 ohms) Pin 6: Phone/Headset Output
A standard 50-ohm VHF whip antenna. Ensure the VSWR is less than 3:1 for optimal transmission. narco escort ii installation manual full
Avionics installation should be performed or supervised by a certified A&P mechanic or an FAA-approved radio shop. Improper wiring can lead to electrical fires or loss of critical navigation equipment.
While the Escort II is relatively efficient, ensure there is adequate airflow behind the stack to prevent heat soak, which can drift frequency stability. 2. Physical Mounting The Escort II uses a standard lateral mounting tray. If you are looking to install or reinstall
Note: Always verify your specific unit's Mod level against the wiring diagram on the chassis sticker, as Narco made slight variations during production. 4. Antenna Connections
Test the "Pull-for-Squelch" feature to ensure clear audio. Pin 1 & 2: Ground Pin 3: +14VDC
Typically reserved for external VOR/LOC needle outputs if connecting to an external CDI.
A "V" or "T" style dipole antenna. If you are sharing this antenna with another NAV radio, you must use a signal splitter (diplexer) to avoid signal loss. 5. Post-Installation Testing Once wired, perform the following checks:
In the United States, an installation of this nature requires an entry in the aircraft logbooks. If this is a new installation (rather than a "plug-and-play" replacement), an for Major Repair and Alteration may be required, along with an updated Weight and Balance report.