* FAA TSO: C6c
    * Dimensions: 3.375"H x 3.375"W x 7.310"L
    * Altitude: 15000 ft. max.
    * Pointer 1 Color: Day-Glo yellow (-001 thru -007 units)
      White (-021 thru -027 units)
    * HDG flag Color: Day-Glo rocket red
    * Numerals Color: White
    * Bearing Pointers Positioning Accuracy: Less than +-2.0 degrees
    * Bearing Pointers Dead Zone: Less than 1.0 degree
    * VOR 1/2 Positioning Accuracy: Within +-2.0 degrees (w/ square wave input)
    * VOR 1/2 Dead Zone: Less than 1.0 degree
    * Heading Display Interface: Signal 3-wire synchro. References 2 wire
    * Compass Card Sensitivity: Better than +-0.1 deg
    * Environmental: RTCA DO-138
    * Weight: 2.6 lbs.
    * Temperature: -15 to +55C (operation)
    * Pointer 2 Color: Day-Glo green (-001 thru -007 units),br.White (-021 thru -027 units)
    * Lubber line Color: Day-Glo arc yellow
    * Background Color: Black
    * Bearing Pointers Sensitivity: Better than +-0.5 degrees
    * Bearing Pointers Response: Greater than 180 degree per second undamped
    * VOR 1/2 Sensitivity: Better than +-0.5 degree
    * VOR 1/2 Response: Greater than 180 degrees per second undamped
    * Heading Display Positioning Accuracy: Within 1.0 deg.
    * Compass Card Dead Zone: Less than 0.2 degree