PRIMUSr 880 Digital Weather Radar System
2.System Configurations
The PRIMUSâ 880 Digital Weather Radar System can be operated in many configurations to display weather or ground mapping information on a radar indicator, electronic flight instrument system (EFIS) display, multifunction display (MFD), or on a combination of these displays. The various system configurations are summarized in the following paragraphs and shown in figure 2- 1.
NOTE: Other configurations are possible but not illustrated.
The stand- alone configuration consists of two units: receiver transmitter antenna (RTA), and a dedicated radar indicator. In this configuration, the radar indicator contains all the controls to operate the PRIMUSâ 880 Digital Weather Radar System. A single or dual Honeywell EFIS can be added to the stand- alone configuration. In such a case the electronic horizontal situation indicator (EHSI) repeats the data displayed on the radar indicator. System control remains with the radar indicator.
The second system configuration uses an RTA, and single or dual controllers. The single or dual EFIS is the radar display. Since there is no radar indicator in this configuration, the radar system operating controls are located on the controller. With a single controller, all cockpit radar displays are identical.
The dual configuration gives the appearance of having two radar systems on the aircraft. In the dual configuration, the pilot and copilot each select independent radar mode, range, tilt, and gain settings for display on their respective display. The dual configuration time shares the RTA. On the right- to- leftantenna scan, the system switches to the mode, range, tilt, and gain selected by the left controller and updates the left display. On the reverse antenna scan, the system switches to the mode, range, tilt, and gain setting selected by the right controller and updates the right display. Either controller can be slaved to the other controller to show identical images on both sides of the cockpit.
NOTE: When WAIT, SECTOR SCAN, or FORCED STANDBY are activated, the radar operates as if in single controller configuration. This is an exception to the ability of each pilot to independently select modes.
A28- 1146- 102- 00 | System Configurations |
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