Table of Contents
Foreword
1.0Purposeandscope
1.1Introduction
1.2Systemoverview
1.3Operationalapplications
1.3.1General
1.3.2Typicalapplications
1.3.3Informationrequirements
1.4Equipmentcharacteristics
1.4.1Angleaccuracyandsensitivity
1.4.2Angleselection
1.4.3MLSreceptiondistance
1.4.4Airborneantennacoverage
1.4.5Basic/auxiliarydata
1.4.6Cockpitcontrols/displays
1.4.7Warnings
1.4.8Interfacewithotheraircraftsystems
1.5Operationalgoals
1.5.1Approachpathoperations
1.5.2Flareguidance
1.5.3Missedapproach/departureoperations
1.6Testprocedures
1.6.1Environmentaltests
1.6.2Benchtests
1.6.3Installedsystemtests
1.6.4Operationaltests
1.7Definitions
1.8Assumptions
2.0Airbornemicrowavelandingsystemequipment
requirements
2.1Generalrequirements
2.1.1Airworthiness
2.1.2Intendedfunction
2.1.3FederalCommunicationsCommissionrules
2.1.4Fireprotection
2.1.5Ratingofcomponents
2.1.6Operationofcontrols
2.1.7Accessibilityofcontrols
2.1.8Effectsoftest
2.1.9Equipmentperformance
2.1.10Specificequipmentrequirements
2.1.11Equipmentconfiguration
2.2Equipmentperformance-standardconditions
2.2.1Accuracywithoutmultipath
2.2.2Warnings
2.2.3Accuracyinthepresenceofmultipath
2.2.4Resolution
2.2.5Outputresponsecharacteristics
2.2.6Coverage
2.2.7Clearance
2.2.8Stationidentification
2.2.9Visualindicator
2.2.10Additionaldata
2.2.11Antennaperformance
2.2.12High-rateazimuthoption
2.2.13Angleselection
2.2.14RFchannelselection
2.3Equipmentperformance-environmental
conditions
2.3.1Temperatureandaltitudetests
2.3.2Temperaturevariationtest
2.3.3Humiditytest
2.3.4Shocktests
2.3.5Vibrationtests
2.3.6Explosiontest
2.3.7Waterproofnesstest
2.3.8Fluidssusceptibilitytests
2.3.9Sandanddusttest
2.3.10Fungusresistancetest
2.3.11Saltspraytest
2.3.12Magneticeffecttest
2.3.13Powerinputtests
2.3.14Voltagespikeconductedtest
2.3.15Audiofrequencyconductedsusceptibilitytest
2.3.16Inducedsignalsusceptibilitytest
2.3.17Radiofrequencysusceptibilitytest
2.3.18Emissionofradiofrequencyenergytest
2.4Equipmenttestprocedures
2.4.1Definitionsoftermsandconditionsoftest
2.4.2Detailedtestprocedures
2.4.2.1RFsignallevelvariation
2.4.2.2In-bandinterferencewithoutdesiredsignal
2.4.2.3In-bandinterferencewithdesiredsignal
2.4.2.4Out-of-bandinterference
2.4.2.5Variationsinscanningbeamwidth
2.4.2.6Periodicsignalinterruption
2.4.2.7Proportionalcoverage
2.4.2.8Warnings
2.4.2.9Pathfollowingandcenteringerror
2.4.2.10Controlmotionnoise
2.4.2.11Resolution
2.4.2.12Outputresponsecharacteristics
2.4.2.13Coverage
2.4.2.14Clearance
2.4.2.15Stationidentification
2.4.2.16Deflectionrangeanddeflectiondirection
2.4.2.17Deflectionlinearity
2.4.2.18Additionaldata
2.4.2.19Frequencybandwidthandvoltagestandingwave
ratio
2.4.2.20Antennagainandpolarization
2.4.2.21High-rateazimuthoption
2.4.2.22Angleselection
2.4.2.23RFchannelselection
3.0Installedequipmentperformance
3.1Equipmentinstallation
3.1.1Equipmentaccessibility
3.1.2Displays
3.1.3Dynamicresponse
3.2Installedequipmentperformancerequirements
3.2.1Generalperformancerequirements
3.2.2Interference
3.2.3Antennarequirements
3.2.4Coursedeviationdisplays
3.2.5Displayofelevationreferenceangle
3.3Conditionsoftest
3.3.1Powerinput
3.3.2Associatedequipmentorsystems
3.3.3Environment
3.3.4Adjustmentofequipment
3.3.5Warm-upperiod
3.4Testproceduresforinstalledequipment
performance
3.4.1Conformityinspection
3.4.2Benchtests
3.4.3Groundtestprocedures
3.4.4Flighttestprocedures
4.0Operationalcharacteristics
4.1Requiredoperationalcharacteristics
4.1.1Characteristicscheckedinflightoperations
4.1.2Characteristicsnormallycheckedduringground
inspections
4.2Testprocedures
4.2.1Proceduresforverifyingcharacteristics
normallycheckedinflightoperations
4.2.2Proceduresforverifyingcharacteristics
normallycheckedduringgroundinspections
Membership
AppendixAMLSfrequencyplan
AppendixBAccuracyandmultipathbenchtestset
requirements
AppendixCStandardtestsignal
AppendixDReceivercharacteristicsinthepresenceof
multipath
AppendixEMeasurementofequipmentaccuracy Abstract
Defines operational goals and applications, and recommends standards and test procedures for use of Microwave Landing System (MLS) airborne receiving equipment.
