The MD41-454 is a self -contained GPS Annunciation and Control unit. It combines all the necessary functions required for switching HSI/CDI data inputs between a conventional VOR receiver and the Garmin GPS 155XL, GNC 300 and GNC 300XL approach-certified GPS receivers. In addition, the MD41-454 contains several GPS status annunciations used to indicate modes selected by the front panel switches and various inputs from the GPS receiver.
A special ILS override feature has been incorporated to cause the MD41-454 to automatically switch to the NAV mode when the VOR receiver is tuned to an ILS frequency. Other features include dual, 16,000 hour lamps used for all annunciations, internally lighted selection switches, automatic photocell dimming, and built-in annunciation self test. A external annunciation dimming adjustment is provided for balancing low level light conditions
Specifications
Mounting: Panel
Width: 3.50 Inch
Heght: 1.350 Inches
Depth: 4.625 Inch
Weight: 0.75 lb
TSO Compliance: TSO C129
Applicable Documents: RTCA DO-160C, DO-208
Operating Temperature Range: -55 to +70°C
Humidity: 95% Non-Condensin
Altitude Range: 0 to 55,000
Vibration: Cat. M and N
Operational Shock: Rigid Mounting, 6 G Operational (15 G Crash Safe)