MD41-448, Model MD41 Annunciation Control Unit – 28V, Horizontal, With internal relay
The MD41-448 is a self -contained GPS Annunciation and also 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 also GNC 300XL approach-certified GPS receivers. In addition, the MD41-448 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 MD41-448 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 also built-in annunciation self-test. Lastly, An external annunciation dimming adjustment is provided for balancing low-level light conditions.
Width: 3.50 Inch
Height: 1.350 Inches
Depth: 4.625 Inch
Also, 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 also N
Lastly, Operational Shock: Rigid Mounting, 6 G Operational (15 G Crash Safe)