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Class: NavBaseFields

These are the fields that should be exposed by NavSources and NavIndicators. Not all fields will be used by all the different Nav Sources. To add a new field, just add it to NavBaseFields, then add some code to each of the different NavSources to keep that field updated. Don't use this class directly. Every Subject should be able to be set to null, so that when the source is set to null, all the fields cna be nulled. This isn't abstract so that we can instantiate it in one place to help generate setters.

Hierarchy​

Constructors​

constructor​

• new NavBaseFields(): NavBaseFields

Returns​

NavBaseFields

Properties​

activeFrequency​

• Readonly activeFrequency: Subject<null | number>

The active frequency that the nav source is tuned to. Only for NAV and ADF source types. NAV ACTIVE FREQUENCY, ADF ACTIVE FREQUENCY.

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:62

bearing​

• Readonly bearing: Subject<null | number>

Always points to the curently tuned station or next waypoint/fix. NAV RADIAL, ADF RADIAL

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:14

course​

• Readonly course: Subject<null | number>

Either points towards the next waypoint (GPS/FMS), displays the course selected by the course knob (VOR), or displays the fixed course of a localizer (ILS). NAV OBS, L:WTAP_LNav_DTK_Mag

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:20

distance​

• Readonly distance: Subject<null | number>

DME, distance to the station or next waypoint. Is null when source is NAV and hasDme is false. NAV DME, ADF DISTANCE, L:WTAP_LNav_DIS

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:43

hasDme​

• Readonly hasDme: Subject<null | boolean>

Whether the source is receiving a valid DME signal. Only for NAV source types. NAV HAS DME

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:48

hasGlideSlope​

• Readonly hasGlideSlope: Subject<null | boolean>

Whether the source is receiving glideslope information. Only for NAV source types. NAV HAS GLIDE SLOPE.

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:75

hasLocalizer​

• Readonly hasLocalizer: Subject<null | boolean>

Whether the nav source is receiving a valid localizer signal. Only for NAV source types. NAV HAS LOCALIZER

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:38

hasNav​

• Readonly hasNav: Subject<null | boolean>

Whether the source is receiving a nav signal. Only for NAV source types. NAV HAS NAV.

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:57

ident​

• Readonly ident: Subject<null | string>

The ICAO ident of the station or waypoint. NAV IDENT, or flight plan

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:52

isLocalizer​

• Readonly isLocalizer: Subject<null | boolean>

Whether the tuned station is a localizer or not. This can be true even if hasLocalizer is false, because this can be based on the frequency alone. Only for NAV source types. NAV LOCALIZER.

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:33

lateralDeviation​

• Readonly lateralDeviation: Subject<null | number>

Normalized and scaled lateral deviation (-1, 1). NAV CDI, L:WTAP_LNav_XTK

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:66

lateralDeviationScaling​

• Readonly lateralDeviationScaling: Subject<null | number>

The current CDI scale, in nautical miles. Only for GPS source types. L:WTAP_LNav_CDI_Scale

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:88

lateralDeviationScalingLabel​

• Readonly lateralDeviationScalingLabel: Subject<null | string>

A readable string/enum that shows the name of current scaling being applied to lateral deviation. Only for GPS source types. L:WTAP_LNav_CDI_Scale_Label

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:93

localizerCourse​

• Readonly localizerCourse: Subject<null | number>

The fixed course of a localizer when available (ILS). Is null when hasLocalizer is false. Only for NAV source types. NAV LOCALIZER

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:26

timeToGo​

• Readonly timeToGo: Subject<null | number>

TTG, estimated time remaining until aircraft reaches next fix. // TODO Implement this

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:78

toFrom​

• Readonly toFrom: Subject<null | VorToFrom>

Whether course is pointing TO or FROM the station (VOR), or if the aircraft heading is within 90 degress of the desired track (GPS). NAV TOFROM, // TODO FMS VAR?

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:83

verticalDeviation​

• Readonly verticalDeviation: Subject<null | number>

Normalized and scaled vertical deviation (-1, 1). NAV GLIDE SLOPE ERROR, L:WTAP_VNav_Vertical_Deviation, L:WTAP_LPV_Vertical_Deviation

Defined in​

workingtitle-instruments-wt21/shared/Navigation/NavBase.ts:70