BENDIXKing AeroNav 910 Pilot's Manual page 220

AeroNav 900/880 Series Pilot's Guide
The "Stabilization" LSK is an on/off toggle of the radar's gyro
stabilization.
When Radar is "On", the controllable parameters are:

Range – Use the outer ring of the bottom right knob to
control the displayed range scale.

Tilt – Use the inner ring of the bottom right knob to control
the tilt angle and direction of the radar antenna: U for up via
right twists, D for down via left twists with the amount of
antenna tilt in 0.25° increments, using decimal notation.

Azimuth – Push the bottom right knob to toggle between Tilt
and Azimuth control and then twist that knob to adjust the
azimuth or bearing line. The azimuth/bearing line is
controlled in increments of 1° and the relative bearing is
displayed in degrees relative to aircraft heading (if known)
where left has a "-" indicator in front of the relative azimuth. It
will also control the radar's "yaw" or lateral position of the
dish, when in vertical profile mode.
4-70 Map Subsystem
89000039-010
Rev 1 May 2019