Before diving into the installation process, let's take a brief look at the Narco Escort II and its features. The Narco Escort II is a marine navigation system that provides accurate and reliable navigation data, including depth sounding, speed measurement, and GPS tracking. Its user-friendly interface and compact design make it an ideal choice for boat owners and sailors of all levels.
: Available at connector P301 pin 12 . When this pin is externally grounded through a switch and the mike key line is open, mike audio is amplified by a 50 mW amplifier and routed to audio outputs at pins 5 and 6 .
The Escort II interfaces with the aircraft via a rear edge connector (often a 24-pin or 30-pin dual-row molex or card-edge style connector, depending on the specific mod status). Below is the standard wiring matrix for the primary functions. Pin Number Wire Gauge (AWG) +14 VDC Aircraft Power Connect to 7.5A breaker Pin B / 2 Power Ground Connect to airframe ground Pin C / 3 Microphone Audio Input 22 AWG (Shielded) From pilot mic jack Pin D / 4 Microphone Key (PTT) Push-to-Talk switch Pin E / 5 Headphone Audio Output 22 AWG (Shielded) To audio panel or jacks Pin F / 6 Speaker Output For cabin speaker (if used) Pin H / 7 Panel Dimming / Lighting Connect to bus dimmer Pin J / 8 Music / Auxiliary Input 22 AWG (Shielded) Optional audio input Pin K / 9 Airframe Ground (Shields) Audio shield termination narco escort ii installation manual full
Mount on the top or bottom of the fuselage, ensuring a clean ground plane. Connect using high-quality RG-58 or RG-400 coaxial cable. NAV Antenna Requires a standard VOR/LOC horizontal dipole antenna.
The specifies the P301 connector, which handles power, audio, and radio functions. Proper wiring is critical for performance. Before diving into the installation process, let's take
Without these pages, you cannot legally or safely certify the installation for IFR flight.
Run an 18 AWG black wire from a clean airframe ground point directly to the Power Ground Pin. Do not daisy-chain ground wires to avoid ground loops. Step 2: Audio Connections : Available at connector P301 pin 12
The unit requires two separate coaxial inputs: one 50-ohm RG-58 A/U for the COM antenna and another for the NAV antenna. Audio Output:
