C-7511A/APS-115 Radar Antenna Control Panel

Figure 3-1.-Azimuth scan coverage. the antenna scan to be 360 degrees during dual system operation. The antenna scan will be 240 degrees during single system operation. In the SECTOR posi- tion, the antennas will scan 45 (±4) degree sectors. This sector will center around the position established by the ANT HEADING control. With STOP selected, C-7511A/APS-115 Radar Antenna Control Panel The C-7511A/APS-115 (fig. 3-2) controls both of the radar antennas. There are six controls available to the operator for getting the presentation desired. TILT KNOB.— This knob gives the operator the ability to vary the tilt of the antenna manually. The range of manual tilt is from +10 degrees to –20 degrees from aircraft horizontal. NORTH STAB/HEADING STAB PUSH BUTTON.— With NORTH STAB selected (illumi- nated amber), the presentation displayed will be north stabilized. 000° displayed will be true north. With HEADING STAB selected (illuminated amber), the presentation will be heading stabilized. 000° displayed will be aircraft heading. Pressing the push button will alternately select NORTH or HEADING. STAB/OUT SWITCH.— With STAB selected, the antennas will automatically correct for aircraft pitch and roll attitude changes. Mechanical limit for antenna stabilization is ±30 degrees, with respect to the aircraft. With OUT selected, the antenna stabilization is disabled. SCAN SWITCH.— There are three selections possible to the operator. The FULL selection causes Figure 3-2.-C-7511A/APS-115 radar antenna control panel. 3-2