The BendixKing Honeywell KI-203 VOR/LOC/Glideslope Indicator is designed to operate with VHF navigational equipment (such as the KX-170, KX-170A, KX-170B, KX-175, KX-175B, KN-53, KX-155, KX-155A, KX-165A) to provide OMNI range or localizer information. The navigational information from the VHF receiver is converted to DC signals to drive the left-right needle, To-From indicator and warning flag. The OBS knob allows the pilot to select the desired radial from the VOR station. The KI-203 maximum altitude of 50,000 feet. The KI-203 is 3.26 inches high, 3.26 inches wide, 7.16 inches deep and weighs 1.70 pounds.