Course Deviation Indicator
Are you a pilot or aircraft owner? Search our Dealer Locator to find our products near you.
Replace aging navigation indicators with the MD222-406. This 2-inch Course Deviation Indicator (CDI) is an affordable solution for tight aircraft panel installations. Each unit features new-generation rectilinear meter movements for more accurate readings, a course selector and resolver output. The MD222-406 is FAA TSO certified for use with most GPS and VOR systems.
- Compact 2-inch size saves panel space
- Precision replacement for older navigation indicators
- Ideal for applications where space is limited or as a backup for glass panel displays
- Rectilinear meter movements allow for more accurate readings
- LED backlighting provides increased reliability and longer life
- Built-in NAV, GPS and VLOC annunciators
- Rugged construction includes ball bearings in critical areas
- True course resolver output (1 volt, 30 Hz)
- Quality Mil-Spec connectors included
- FAA TSO certified for use with most GPS and VOR systems
- Designed and built in Wichita, Kansas, USA
- One-year limited warranty
Power Input
Accepts 11 to 32 volts DC, 0.3A max
Lighting
Internal white LED
Lighting control voltage is selectable for 5, 14 or 28 VDC
Weight
0.6 lbs.
Certification
FAA TSO-C34e, -C36e, -C40c
RTCA DO-192, -195, -196, -160E
Length
3.5”
Temperature Range
–30°C to +55°C (–22°F to 130°F)
Humidity
95% non-condensing
Altitude
–15,000 to +55,000 feet
Cover Glass
Special HEA (anti-reflective) coating
Connector
25-pin male D-Sub (MD25M3S0V50)
Mating Connector
25-pin female D-Sub (MD25F3R4000 or equivalent)
Color
Index marks, text: white
Glideslope, navigational pointers: white
Bezel, dial background: black
Operational Shock
Rigid mounting, 6G operational, 15G crash safety
NAV/GS Deviation
Input impedance:
Normal: 1k ohms ± 10%
Max Operating Temp Range: 1k ohms ± 25%
Deflection sensitivity*:
Normal: 150 mV ± 10%
Max Operating Temp Range: 150 mV ± 25%
Valid NAV/GS Meter
Input impedance:
Normal: 1k ohms ± 10%
Max Operating Temp Range: 1k ohms ± 25%
Meter in view*:
Normal: 260 mV ± 10%
Max Operating Temp Range: 260 mV ± 25%
To/From Annunciation
Input impedance:
Normal: 200 ohms ± 10%
Max Operating Temp Range: 200 ohms ± 25%
To or From in view*:
Normal: ± 40 mV ± 15%
Max Operating Temp Range: ± 40 mV ± 25%
OBS Resolver
Zeroed at:
Normal: 300° ± 1° ORZ
Max Operating Temp Range: 300° ± 2.5°
*Input Range
Common mode/reference 1 to 5 volts for signal inputs