Honeywell 880 Pilot's Manual

A28- 1146- 102- 00 Radar Facts 5-27 WX Roll Offset Adjustment Display - Final Figure 5- 24 ...

A28- 1146- 102- 00 Operating Controls 3-10 12 GAIN The GAIN knob is a single- turn rotary control and push/pull switch that is used to control the receiver gain. Push in on the GAIN switch to enter the system into the preset calibrated gain mode. Calibrated gain is the normal mode and is used for weather avoidance. In calibrated gain, the rotary portion of the GAIN control does nothing. In calibrated gain, the color bar legend is labeled 1,2,3,4 in WX mode or 1,2,3 in GMAPmode. Pull out on the GAIN switch to enter the system into the variable gain mode ...

A28- 1146- 102- 00 In- Flight Troubleshooting 7-4 Figure 7- 2 shows the fault codes displayed on EFIS with text faults disabled. AD- 35708- R1@ VOR1 VOR2 FAIL 22 HDG 319 25 15 DTRK 315 GSPD MAG1 321 TGT FMS1 130 NM V 260 KTS 50 Fault Code on EFIS Weather Display With TEXT FAULTS Disabled Figure 7- 2 Radar Indication With Text Fault Enabled (On Ground) Figure 7- 3 ...

A28--1146--102--03 REV 3 4-5 Normal Operation To aid in target interpretation, targets are displayed in various colors. Each color represents a specific target intensity. The intensity levels chosen are related to the National Weather Service (NWS) video integrated processor (VIP) levels. In the WX mode, the system displays five levels as black, green, yellow, red, and magenta in increasing order of intensity. If RCT is selected, the radar receiver adjusts the calibration automatically to compensate for attenuation losses as the radar pulse passes throu ...

A28- 1146- 102- 00 Radar Facts 5-29 ROLL GAIN ADJUSTMENT This in- flight adjustment is made in a bank when the ground returns do not remain symmetrical during turns. The procedure is listed in table 5- 9. Step Procedure 1 If two controllers are installed, one must be turned off. If an indicator is used as the controller, the procedure is the same as given below. 2 Fly to an altitude of 10,000 feet AGL or greater. 3 Set range to 25 NM. 4 Adjust the tilt down until a solid band of ground returns are shown on the screen. Then adjust the tilt until the gree ...

A28- 1146- 102- 00 Operating Controls 3-7 Selected Range (NM) Minimum Target Depth (NM) Target Range (NM) 5 5 5- 55 10 5 10- 60 25 5 25- 75 50 5 50- 100 100 5 100- 150 200 5 200- 250 300 N/A N/A FP (Flight Plan) 5 5- 55 Target Alert Characteristics Table 3- 2 4 RCT (Rain Echo Attenuation Compensation Technique (REACT)) The RCT switch is an alternate- action switch that enables and disables REACT. The REACT circuitry compensates for attenuation of the radar signal as it passes through rainfall. The cyan field indicates areas where further compensation is ...

A28- 1146- 102- 00 Operating Controls 3-23 WARNINGS 1. TO AVOID FLYING UNDER OR OVER STORMS, FREQUENTLY SELECT MANUAL TILT TO SCAN BOTH ABOVE AND BELOW YOUR FLIGHT LEVEL. 2. ALWAYS USE MANUAL TILT FOR WEATHER ANALYSIS. 7 RANGE RANGE is a rotary control used to select one of six ranges (10, 25, 50, 100, 200, and 300 NM). The seventh position of the range switch isflight plan mode. Selecting FPLN blanks the radar information from the EFIS display and the mode annunciation flashes if a radiating mode is selected. The EFIS is set to a range determined by th ...

A28- 1146- 102- 00 Radar Facts 5-29 ROLL GAIN ADJUSTMENT This in- flight adjustment is made in a bank when the ground returns do not remain symmetrical during turns. The procedure is listed in table 5- 9. Step Procedure 1 If two controllers are installed, one must be turned off. If an indicator is used as the controller, the procedure is the same as given below. 2 Fly to an altitude of 10,000 feet AGL or greater. 3 Set range to 25 NM. 4 Adjust the tilt down until a solid band of ground returns are shown on the screen. Then adjust the tilt until the gree ...