Garmin GNC250XL
GPS/COMM
The second of two new panel-mount navigators, the GNC 250XL combines the highly acclaimed GNC 250 with very high-resolution moving map graphics and communication capability. Delivering clear communication from its 5-watt, 760-channel VHF transceiver, the GNC 250XL also features front-loading data cartridges for easy Jeppesen updating. The display LCD is more than four times as many pixels as competitors' panel-mount products, allowing SUAs to actually appear as curved rings and making alphanumeric characters more easily distinguishable. The GPS 150XL and the GNC 250XL also employ powerful 12-channel GPS receivers, making them the first VFR panel-mounted units in the marketplace to use the patented PhaseTrac12 GPS engine
Jeppesen Database
--------------------------------------------------------------------------------
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, freq., co-located DME (or TACAN), magnetic variation, weather broadcast indication
NDBs: Identifier, city/state, country, facility name, lat/lon, freq., weather broadcast indication
Intersections: Identifier, country, lat/lon, nearest VOR
Comm Freq.: Approach, arrival, control area, departure, Class B, Class C, TMA, TRSA with sector, altitude, and text usage; also ATIS, clearance delivery, tower, ground, unicom, pre-taxi
Runways: Designation, length, surface, lighting, ILS/localizer freq and ident, pilot-controlled lighting freq.
FSS/ARTCC: Identifier, reference VOR (FSS only), freq., usage
MSA: Minimum safe altitude along and in proximity to user-defined flight plan
SUA: U.S. Class B & C with sectors, Int. CTA & TMA with sectors, all SUAs, including MOAs, prohibited and restricted w/ controlling agency
--------------------------------------------------------------------------------
Performance
--------------------------------------------------------------------------------
Certification: TSO C37d Class 4 (VHF Transmitter), TSO C38d Class C (VHF Receiver), AC 20-138 (VFR) (GPS Receiver)
VHF Transceiver: 760-channel, aviation band 118-136.975 MHz
5 watt minimum transmitter power
GPS Receiver: Differential-ready 12 parallel channel receiver simultaneously tracks and uses up to 12 satellites
Acquisition Time: 15 seconds (warm), 45 seconds (cold)
Update Rate: 1/second, continuous
Accuracy:
Position: 1-5 meters (3-15 feet) with DGPS. RMS
Velocity: 0.1 knot RMS steady state
Dynamics:
Velocity: 999 knots
Acceleration: 6g's
Comm Features: Auto Squelch Control, standard headset output with sidetone and audio leveling, stuck mike transmission timeout, emergency channel select, autotune frequency selection from GPS database
Navigation Features: Search and Rescue Operation (ladder search), pilot-defined course selection capability (OBS) and waypoint hold, Closest Point of Approach, departure and arrival frequencies
Moving Map Features: 14 map scales from 0.5 to 300 nm, with nearby waypoints, navaids, and sectorized airspace, runway, and navigation data displayed. Autozoom feature automatically keeps present position and destination on the map, with user-selectable track up, north up or desired track up display
Planning Features: True Airspeed, Density Altitude, Winds Aloft, RAIM Availability, Sunrise/Sunset Calculations, and Trip, Fuel and VNAV Planning
Interfaces: ARINC 429, Plotting (NMEA 0183 v.2.0), Aviation, PC Interface, Altitude Serializer, Fuel Sensor, Fuel/Air Data Computer
Map Datums: 124 and 1 user defined (Stored on NavData® Card)
Temperature:
Operating: -20°C to +55°C (-4°F to +131°F)
Storage: -55°C to +85°C (-67°F to +185°F)
Humidity: 95% non-condensing
--------------------------------------------------------------------------------
Physical Specifications
--------------------------------------------------------------------------------
Size:
Unit: 6.25 x 2 x 5.8 inches (159 x 51 x 147 mm)
Rack: 6.32 x 2 x 5.64 inches (143 x 51 x 161 mm)
Weight:
Unit: 41 ounces (1.16 kg)
Rack: 11 ounces (0.31 kg)
Display: 80 x 240 dot matrix DSTN display with superior contrast over typical DSTN displays. Automatic contrast adjustment with reverse mode for exceptional readability in direct sunlight or at night
--------------------------------------------------------------------------------
Power
--------------------------------------------------------------------------------
Source: 10-15 VDC, optional remote rechargeable battery, 115 VAC with optional AC adapter for GPS simulator operation (no TX)
Battery Life (optional): Up to 1 hour with screen timeout enabled
Data Storage: Internal battery retains stored data up to 5 years
--------------------------------------------------------------------------------
Navigation Features
--------------------------------------------------------------------------------
Waypoints: 1,000 User Defined
Flight Plans: 20 reversible routes of up to 31 waypoints each
Comments: Storage for comments on up to 250 waypoints
Checklists: 9 user checklists of up to 30 items each
Messages: 9 scheduled user messages
--------------------------------------------------------------------------------
Safety
--------------------------------------------------------------------------------
Emergency Search: 9 nearest airports, VORs, NDBs, intersections, or user waypoints; 2 nearest FSS with frequencies; 2 nearest ARTCC frequencies
Power Back up: Optional NiCad battery pack automatically powers unit in case of electric power failure
Alarms: Arrival, proximity, timers
--------------------------------------------------------------------------------
Components
--------------------------------------------------------------------------------
Standard:
GNC 250XL GPS/Comm
NavDataide T card
Aviation installation and GPS kit
3/32" hex wrench
Pilot's guide
Quick reference card
Database subscription packet
Optional:
115 VAC adaptor
Personal computer kit
User data card
28- to 14-volt DC converter
Page Last Edited: 1/26/99