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Basemap: Worldwide Land; includes state/country boundaries, lakes, rivers, railroads, cities, coastlines; U.S., state, and interstate highways, and local thoroughfares

Plotting Scales: 1/10 to 3000 nm with push-button zoom control

Coverage: Americas, International or Worldwide

Airports: Identifier, city/state, country, facility name, lat/lon, elevation, fuel service, control, approach information

VORs: Identifier, city/state, country, facility name, lat/lon, frequency, co-located DME/TACAN, magnetic variation, weather broadcast indication

NDBs: Identifier, city/state, country, facility name, lat/lon, frequency, weather broadcast indication

Intersections: Identifier, country, lat/lon, nearest VOR

Frequencies: Approach, arrival, control area, departure, Class B, Class C, TMA, TRSA (with sector, altitude, and text usage info), ASOS, ATIS, AWOS, center, clearance delivery, tower, ground, unicom, pre-taxi, localizer, and ILS

Runways: Designation, length, width, surface, lighting, pilot-controlled lighting frequency

FSS/ARTCC: Identifier, frequency, usage

MSA: Minimum safe altitude along and in proximity to active flight plan

Approaches: Non-precision and precision approaches throughout the database coverage

DPs/STARs: Contains all pilot/nav DPs/STARs

Airspaces: Class B & C with sectors; International CTA & TMA with sectors; all SUAs, including MOAs; prohibited and restricted areas with controlling agency and airport

Emergency Search: 9 nearest airports, VORs, NDBs, intersections, or user waypoints; 5 nearest FSS and ARTCC frequencies

Alarms: Arrival; timers; airspace alarms at 10 minutes, 2nm, and inside airspace

Waypoints: 1,000 User Defined

Flight Plans: 20 reversible routes of up to 31 waypoints each

GPS: TSO C129a, Class A1 (en route, terminal, and approach)

Oceanic Approval: Fault Detection and Exclusion (FDE)

Receiver: PhaseTrac12™, twelve parallel channel receiver, simultaneously tracks and uses up to 12 satellites

Acquisition Time: 12 seconds (warm), 45 seconds (cold)

Update Rate: Once per second, continuous

Accuracy:

• Position: 15 meters (49 feet) RMS*
• Velocity: 0.1 knot RMS steady state

• Velocity (max): 999 knots
• Acceleration(max): 6g's

Nav Features: Pilot-defined course selection and waypoint hold, closest point of approach, departure and arrival frequencies, approach navigation using published approach procedures stored on NavData card, terminal navigation using DPs/STARs from NavData card

Planning Features: True airspeed, density altitude, winds aloft, RAIM availability, sunrise/sunset times, trip and fuel planning, vertical navigation (VNAV)

Interfaces: ARINC 429, Aviation RS-232, CDI/HSI, RMI (digital: clock/data); Superflag Out, Altitude (serial: Icarus, Shadin-Rosetta, encoded Gillham/Greycode), Fuel Sensor, Fuel/Air Data, Stormscope, Skywatch, TCAD

Map Datums: 124 and 1 user-defined

Frequency Display: Upper left corner of active matrix LCD, 2-lines with active frequency above standby

Unit Size: Width = 6.25"; Height = 2.65"; Depth = 11.00" behind panel, with connectors

Unit Weight: 4.9 pounds installed (400); 5.8 pounds installed (420)

Display: Color LCD

Power: 11-33 VDC; 28 VDC (420 "A")

Data Storage: Separate internal battery protects stored data for up to five years

Temperature: -20°C to +55°C (operating range); -20°C to +70°C (short-term operation)

Humidity: 95% non-condensing

Altitude Range: -1,500 ft to 50,000 ft

Frequency Display: Upper left corner of active matrix LCD, 2-lines with active frequency above standby

Channels: 760 (25 kHz spacing); configuration for 3040 channels (8.33 kHz spacing) also provided

Frequency Range: 118.000 MHz to 136.975 MHz

Transmit Power:

• GNC 420: 10 watts (minimum)
• GNSC 420A: 16 watts (minimum)

Modulation: 70%

Receive Sensitivity: 2.0 µV for 6 dB S/N with 1 kHz 30% mod.

Squelch Sensitivity: 2.0 µV typical

Audio Output: 100 mW minimum into a 500 ohm load; External amplifier required to drive cockpit speaker