Table of Contents
1.0INTRODUCTION
1.1PurposeofthisEquipment
1.2PurposeandLimitationstothisCharacteristic
1.3SystemDescription
1.4Interchangeability
1.5RegulatoryApproval
1.6Reliability
1.7ReferenceDocuments
2.0INTERCHANGEABILITYSTANDARDS
2.1General
2.2FormFactors,ConnectorsandIndexPinCoding
2.3Interwiring
2.4PowerCircuitry
2.5Weights
2.6EnvironmentalConditions
2.7Cooling-General
2.8InputSignalCharacteristics
2.9AudioOutputs
2.10Radome
2.11RFTransmissionLine
2.12AntennaGainCompensation
2.13GroundingandBonding
3.0SYSTEMDESIGNANDPERFORMANCEREQUIREMENTS
3.1Performance
3.2DisplayCharacteristics
3.3Controls
3.4RadioFrequency
3.5C-BandSystem
3.6OperatingConditions
3.7DualOperation
3.8SensitivityTimeControl(STC)
3.9TurbulenceDetection
3.10Anti-Clutter
3.11AlertOutputs
3.12LRUFailureIndicator
3.13Master/SlaveOperation(Optional)
4.0TRANSMITTER-RECEIVERUNITDESIGN
4.1General
4.2AutomaticGainControl(AGC)
4.3STC
4.4RangeResolution
4.5DynamicRange
4.6AntennaStabilization
4.7DigitalInputsforWindshearDetection
4.8SerialDigitalControlInputs
4.9SerialDigitalDataOutputs
4.10TestFacilities
4.11ServiceAdjustments
4.12Cooling
4.13WaveguideWindow
5.0ANTENNAUNITDESIGN
5.1DesignCriteria
5.2ScanAngleandRate
5.3Tilt
5.4Stabilization
5.5BeamWidthandShape
5.6Mounting
5.7AntennaGainCompensation
6.0CONTROLDISPLAYUNIT(CDU)
6.1GeneralDesignCriteria
6.2Controls
6.3Screen
6.4Focusing
6.5Resolution
6.6PanelLighting
6.7Shielding
6.8ControlDataBus
6.9DisplayDataBus
6.10AuxiliaryDataBus
6.11TCASInterface(Optional)
6.12SystemPerformanceAnnunciator
6.13Cooling
6.14AuxiliaryDataDisplayFunctions(Optional)
6.15CautionandModeIndicators(Optional)
7.0SEPARATEDISPLAYUNIT(DU)DESIGN
7.1General
7.2Controls
7.3DisplayDataBus
7.4Cooling
7.5AuxiliaryDataBus(Optional)
7.6TCASInterface(Optional)
8.0CONTROLPANELDESIGN
8.1General
8.2Controls
8.3ControlDataBus
8.4WindshearAutoTurn-OnInhibit
9.0RADOMEDESIGN
9.1General
9.2TransmissionEfficiency
9.3Reflection
9.4SideLobeLevels
9.5Anti-Icing
9.6BeamDeflectionErrors
9.7BeamWidth
10.0PROVISIONSFORTEST
10.1Built-InTestEquipment
10.2FaultReportingProtocol
10.3AutomaticTestEquipment
ATTACHMENTS
1NotesApplicabletoStandardInterwiring
2-1SingleSystemStandardInterwiring
(SingleorDualDisplays)
2-2DualSystemStandardInterwiring
(SingleorDualDisplays)
3Transmitter/ReceiverConnectorLayout
4-1Transmitter/ReceiverFormFactor(X-Band)
T/RUnit
4-2Transmitter/ReceiverFormFactor(C-Band)
T/RUnit
4-3WaveguideConnectionT/RUnit(X-Band)
4-4WaveguideConnectionRackUnit(X-Band)
4-5DualInstallation(X-Band)
5Control/DisplayandDisplayConnectorLayout
6-1DisplayFormFactor
6-2DisplayMount
7-1ControlPanelConnectorLayout
7-2ControlPanelFormFactor(PerMS25212)
8-1StandardAircraftMountingProvisionsforAntenna
8-2AntennaSpaceProvisions(MaximumSweptVolume)
8-3AnalysisofAntennaMountingRollTolerance
9-1AntennaConnectorLayout
10-1AntennaFormFactor(X-BandLineofSight)
10-2AntennaFormFactor(C-BandLineofSight)
11-1InstallationConfiguration0,2and4
(SingleT-R)
11-2InstallationConfigurations1,2and5
(SingleT-RDual-Display)
11-3InstallationConfiguration6(SingleT-R-Triple
Display)
11-4InstallationConfigurations0,2and4(DualT-R)
11-5InstallationConfigurations1,2and5(DualT-R
Dual-Display)
11-6InstallationConfiguration6(DualT-RTriple
Displays)
11-7ControlBusUsage
11-8DataBusUsage
12PerformanceIndexCurves(WeatherOnly)
13RadarStabilizationTolerancesSummary
14EnvironmentalTestCategories
15-1WeatherRadarSerialControlDataControlWord1
15-2WeatherRadarDisplayDataBusFormat
15-3HazardDataBusFormat
15-4WindshearDiscreteInputWord
15-5TypicalFaultSummaryWord
15-6FaultMessagesforWXRBite(Label356)
16InstallationConfigurationProgramming
17DisplayDataBusTermination
18AuxiliaryDataBusInterface
19InternationalStandardsOrganizationCode#5
20WaveguideSwitchElectricalInterface
21ARINC429InputforTerrainBasedAutomaticTilt
APPENDICES
APhysical,Electrical,andSignalCharacteristics
ofDisplayDataBus
A-1TimingCharacteristics
BNon-StandardApplications Abstract
Describes an airborne pulse Doppler weather radar system for weather detection and ranging. It expands the capabilities of the ARINC 708 system through the inclusion of forward looking windshear prediction. It also provides ground-mapping capabilities to facilitate navigation by display of significant land contours.
