PRIMUSr 880 Digital Weather Radar System
WARNING
WHEN LOW SETTINGS OF VARIABLE GAIN ARE USED, HAZARDOUS TARGETS CAN BE ELIMINATED FROM THE DISPLAY.
In the GMAP mode, variable gain is used to reduce the level of the typically very strong returns from ground targets.
Minimum gain is with the control at its full ccw position. Gain increases as the control is rotated in a cw direction from full ccw. At the full cw position, the gain is at maximum.
The VAR legend annunciates variable gain. Selecting RCT or TGT forces the system into preset gain. Preset gain is not annunciated.
HIDDEN MODES
The PRIMUSâ 880 has five hidden modes that are summarized as follows:
DForced Standby (FSBY) Override
DRoll Offset
DRoll Gain (NOTE)
DPitch Offset (NOTE)
DPitch Gain (NOTE).
NOTE: At the time of installation, the programming strap STAB TRIM ENABLE, determines if the roll and pitch gain, and pitch offset adjustment features are available. Consult the aircraft installation information to determine the installed configuration.
Forced Standby Override
DFunction - Forced standby places the radar in a standby mode on the ground that prevents the radar from radiating and therefore, exposing ground personnel to radiation exposure. This mode is annunciated as FSBY (STBY on EFIS) in systems where mode annunciations are made.
DEntry Method - Power up aircraft on the ground or land the aircraft with the radar powered.
DExit Method - Push the STAB button 4 times within 3 seconds on radar indicator or on controller.
Operating Controls | A28- 1146- 102- 00 |
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