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Garmin HTAWS User Guide - Page 51

Part Four, HTAWS Interface

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Part Four: Section 1 HTAWS Introduction Part Four: HTAWS Interface Section 1: Introduction NOTE: Either the TERRAIN, TAWS (500W-series only), HTAWS, or Terrain Proximity functionality will be available via the Terrain page, depending on the installed hardware and configuration. Overview Garmin's Helicopter Terrain Awareness Warning System (HTAWS) is an optional feature to increase situational awareness and aid in reducing controlled flight into terrain. Garmin TAWS satisfies TSO-C194 requirements for certification. HTAWS provides visual and aural annunciations when terrain and obstacles are a hazard to the aircraft. HTAWS Page with Terrain Alert NOTE: HTAWS-enabled units can be identified by observing the power-up screens. HTAWS-enabled units will display "HTAWS" after the model number. HTAWS-enabled units can also be identified by going to the Terrain page and checking the upper left-corner for "HTAWS." Operating Criteria Garmin HTAWS requires the following to operate properly: • The system must have a valid 3D GPS position solution • The system must have a valid terrain/obstacle database. Limitations NOTE: The data contained in the terrain and obstacle databases comes from government agencies. Garmin accurately processes and cross-validates the data, but cannot guarantee the accuracy and completeness of the data. HTAWS displays terrain and obstructions relative to the flight path of the aircraft. Individual obstructions may be shown if available in the database. However, all obstructions may not be available in the database and data may be inaccurate. Never use this information for navigation. Terrain information is based on terrain elevation data contained in a database that may contain inaccuracies. Terrain information should be used as an aid to situational awareness. Never use it for navigation or to maneuver to avoid terrain. HTAWS uses terrain and obstacle information supplied by government sources. The data undergoes verification by Garmin to confirm accuracy of the content. However, the displayed information should never be understood as being all-inclusive. 190-00356-30 Rev H 45

Section	Page
Part One: Traffic Information Service (TIS) Interface	7
Section 1: TIS Operation and Symbology	7
TIS Operation	7
How TIS differs from TCAS	8
TIS Limitations	8
Improving TIS	9
TIS Symbology	9
Section 2: Control and Display	11
TIS Traffic Display Status and Pilot Response	11
Traffic Page	12
Traffic Page Display Range	12
Map Page	13
Configuring TIS Traffic Data on the Map Page	13
Highlighting TIS Traffic Using Map Page Panning	14
Section 3: TIS Operational Procedures	15
Introduction	15
Power-Up Test	15
Manual Override	16
Flight Procedures	16
After Landing	16
Part Two: XM Radio Interface	17
Section 1: Introduction	17
Overview	17
XM Radio Pages	17
XM NAV Pages	17
XM WPT Pages	18
XM AUX Pages	18
Section 2: XM Weather	18
Weather Product Age	19
XM NEXRAD Weather	19
NEXRAD U.S. and Canadian Coverage	20
NEXRAD Intensity	21
NEXRAD Abnormalities	21
NEXRAD Limitations	22
XM Weather METARs	22
Textual METAR Page	24
Textual METAR/TAF Code	25
TAF Page	25
TFR Information	25
Lightning (LTNG)	26
Cell Movement (CELL MOVE)	27
Winds Aloft	28
Winds Aloft Altitude	29
Section 3: XM AUX Pages	29
XM Information Page	29
XM WX Timestamps	30
Section 4: XM Audio	31
XM Audio Menu	33
Add to Presets List	33
Enter Channel Number	34
Display Channel In List	34
Display Artist In List	35
Display Title In List	35
Enable/Mute Audio Output	36
Change Volume	36
Part Three: TAWS Interface	37
Section 1: Introduction	37
Overview	37
Operating Criteria	37
Limitations	37
Section 2: TAWS Operation	38
TAWS Alerting	38
Baro-Corrected Altitude	38
Power Up	38
TAWS Page	38
Inhibit Mode	40
External TAWS Inhibit Control	40
TAWS Manual Test	40
TAWS Symbols	41
General Database Information	42
Database Versions	42
Database Updates	43
Terrain/Obstacle Database Areas of Coverage	43
Section 3: TAWS Alerts	44
Forward Looking Terrain Avoidance	44
Premature Descent Alerting (PDA)	45
Excessive Descent Rate Alert (EDR)	46
Negative Climb Rate After Takeoff Alert (NCR)	46
“Five-Hundred” Aural Alert	48
TAWS Not Available Alert	48
TAWS Failure Alert	48
TAWS Alert Summary	48
Pilot Actions	50
Airport Terrain “Cutouts”	50
Part Four: HTAWS Interface	51
Section 1: Introduction	51
Overview	51
Operating Criteria	51
Limitations	51
Section 2: HTAWS Operation	52
HTAWS Alerting	52
Baro-Corrected Altitude	52
Power Up	52
HTAWS Page	52
Page Menu	53
Inhibit Mode	54
External HTAWS Inhibit Control	54
Reduced Protection Mode	54
Mute Active Caution	55
HTAWS Manual Test	56
HTAWS Legend	56
HTAWS Symbols	57
General Database Information	58
Database Versions	58
Database Updates	59
Terrain Database Areas of Coverage	59
Obstacle Database Areas of Coverage	60
Section 3: HTAWS Alerts	60
Forward Looking Terrain Avoidance	61
Voice Call Out Aural Alert	61
HTAWS Not Available Alert	62
HTAWS Failure Alert	62
HTAWS Alert Summary	62
Pilot Actions	63
Voice Call Out Selection	64
Part Five: Terrain Proximity Interface	67
Introduction	67
Displaying Terrain Proximity	67
Terrain Proximity 120° Arc or 360° Rings	68
Terrain Proximity Aviation Data	68
Terrain Proximity Legend	69
Terrain Proximity Limitations	70
System Status	70
Part Six: Garmin GTS 8XX Series Interface	71
Introduction	71
GTS 8XX Series Description	71
Power-up Self-Test	71
User-initiated Test	72
Voice Announcements	72
Switching Between Standby and Operating Modes	72
Altitude Display Mode	73
Traffic Page	73
Traffic Warning Window	74
Traffic Page Display Range	74
Configuring Traffic Data on the Map Page	74
Highlighting Traffic Data Using Map Panning	75
Monitoring Traffic	76
Failure Response	76

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Part Four:

Section 1

HTAWS Introduction

Part Four:

HTAWS Interface

Section 1:

Introduction

NOTE

Either the TERRAIN, TAWS (500W-series only),

HTAWS, or Terrain Proximity functionality will be available

via the Terrain page, depending on the installed hardware

and conﬁguration.

Overview

Garmin’s Helicopter Terrain Awareness Warning

System (HTAWS) is an optional feature to increase

situational awareness and aid in reducing controlled

ﬂight into terrain. Garmin TAWS satisﬁes TSO-C194

requirements for certiﬁcation.

HTAWS provides visual and aural annunciations

when terrain and obstacles are a hazard to the aircraft.

HTAWS Page with Terrain Alert

NOTE

HTAWS-enabled units can be identiﬁed by

observing the power-up screens.

HTAWS-enabled

units will display “HTAWS” after the model number.

HTAWS-enabled units can also be identiﬁed by going to

the Terrain page and checking the upper left-corner for

“HTAWS.”

Operating Criteria

Garmin HTAWS requires the following to operate

properly:

•

The system must have a valid 3D GPS position

solution

•

The system must have a valid terrain/obstacle

database.

Limitations

NOTE:

The data contained in the terrain and obstacle

databases comes from government agencies. Garmin

accurately processes and cross-validates the data, but

cannot guarantee the accuracy and completeness of the

data.

HTAWS displays terrain and obstructions relative to

the ﬂight path of the aircraft. Individual obstructions

may be shown if available in the database. However, all

obstructions may not be available in the database and

data may be inaccurate. Never use this information for

navigation.

Terrain information is based on terrain elevation

data contained in a database that may contain

inaccuracies. Terrain information should be used as an

aid to situational awareness. Never use it for navigation

or to maneuver to avoid terrain.

HTAWS uses terrain and obstacle information sup

plied by government sources. The data undergoes veri-

ﬁcation by Garmin to conﬁrm accuracy of the content.

However, the displayed information should never be

understood as being all-inclusive.

190-00356-30 Rev H