Leg, Lifr Lnav LOC LOI LON LPV LRU Ltng | Garmin G600 guide

		Foreword
	Sec 1	System
	Sec 2	PFD
	Sec 3	MFD
Sec 4	Hazard	Avoidance
Sec 5	Additional	Features
Sec 6	Annun. & Alerts
	Sec 7 Symbols
	Sec 8 Glossary
		Appendix A
	Appendix B	Index

HSDB

HSI

Hz

IAF

ICAO

IFR

IGRF

ILS

IMC

IOI

INFO in HG INT INTEG ITI

L

LAT

LCD

LCL

LED

Leg

LIFR

LNAV

LOC

LOI

LON

LPV

LRU

LT

LTNG

MAG MAG VAR MapMX

MAX MAXSPD

High-Speed Data Bus

Horizontal Situation Indicator

Hertz

Initial Approach Fix

International Civil Aviation Organization Instrument Flight Rules

International Geomagnetic Reference Field Instrument Landing System

Instrument Meteorological Conditions Imminent Obstacle Impact information

inches of mercury intersection(s)

integrity (RAIM unavailable) Imminent Terrain Impact

left, left runway latitude

Liquid Crystal Display local

Light Emitting Diode

The portion of a flight plan between two waypoints Low Instrument Flight Rules

Lateral Navigation localizer

loss of integrity (GPS) longitude

Localizer Performance with Vertical guidance Line Replacement Unit

left lightning

Magnetic Magnetic Variation

A proprietary data format used to forward navigation information from the GNS units to the GDU 620 maximum

maximum speed (overspeed)

8-4

Garmin G600 Pilot’s Guide

190-00601-02 Rev. E

Image 354

Garmin G600 manual Leg, Lifr Lnav LOC LOI LON LPV LRU Ltng

Contents

G600 August Aviation Limited Warranty Foreword Iii System Foreword 190-00601-02 Rev. E Garmin G600 Pilot’s Guide Date Description Update informationUpdates for SW Version Production release Contents 10.3 10.110.2 10.4 1.7 1.51.6 5.1 3.4 3.23.3 7.6 Nexrad 10.1.3 10.1.110.1.2 10.2.1 11.10 11.811.9 11.11 3.5 4.14.2 3.6 G600 System LRU Configuration System Description Line Replaceable Units LRU Sec System 2 GDU GDU 620 PFD and MFD GDC 74A/74B 4 GRS 7 GTP 5 GMUGTX 330/330D Optional 8 GSR GDL 69/69A Optional 10 GAD GWX 68 Weather Radar Garmin Navigator InterfaceAhrs Operation 12 Ahrs Operation When Heading Fails 13 Track Mode shown as Active when Heading Info has failed Secure Digital Cards Inserting an SD Card System Power Up Terrain database name and version International Geomagnetic Reference Field PFD Knob System OperationPilot Controls Turn the PFD knob to select the desired value PFD Bezel Keys Heading HDG Vertical Speed Bug Setting MFD Knobs Using the Soft Key Controls MFD Bezel KeysSelected Soft Key Unselected Soft Keys Soft Key Labels Navigating within a Menu Using the Page MenusPress the Menu key to display the menu No Options Options for MAP Window System Settings 20 System Setup System Settings Values Altitude Feet All elevations on MFD Altimeter Meters Vertical Speed Indicator NavigationSetting Hectopascals Hpa Celsius Backlighting Adjustment Manual Adjustment 0.1% to 50% or Auto 1.7% Auto or ManualDisplay Backlighting Barometric IndicatorCurrent Vertical PFD Soft Keys Selected Soft Key CDI SYN VIS Airspeed Indicator Airspeed Tape Markings Overspeed Indication Reference Speeds White Triangle Attitude Indicator Pitch Scale Slip/Skid Indicator Roll Pointer Roll Scale Zero Roll Scale PFD Knob Mode Annunciations Extreme AttitudeRoll Scale Zero Pointer Roll Pointer Nose Up 15 Extreme Pitch Indication Setting the Altitude Bug and Alerter Altimeter 19 Ground Awareness Band Showing Ground Is Within 250 Feet Altitude Alerting 20 Altitude Alerting Visual Annunciations Baro Setting Changing Barometric SettingPress the Baro key to activate Baro mode Alerting Cyan Within 2500 ft White Within 100 ft Barometric Minimums Bug Box 190-00601-02 Rev. E Garmin G600 Pilot’s Guide Vertical Speed V/S Indicator Setting the Vertical Speed Indicator BugVertical Speed Settings Horizontal Situational Indicator Rotating Compass Card Lubber Line OBS Mode ActiveTrend Vector Current Heading Setting the Heading Bug New Heading Bug Setting True NorthCurrent Heading Magnetic North Error Course Deviation IndicatorTurn Rate Indicator 360º HSI Changing CDI Sources Navigator New Course Setting Changing CDI Course Vertical Deviation Indicator VDI Vertical Deviation Source Vertical Deviation Indicator Auto-Slewing Press the 1-2 soft key twice NAV1NAV2NAV1 Course Pointer slewed To 218 for the ILS Approach Plate Supplemental Flight Data Bearing PointersCorresponding Approach Plate Service GPS LevelBearing Temperature Display Wind VectorsStyle Radar Altimeter 40 Radar Altimeter Display 150 foot RA Altitude Press the RA Test key again to stop the self-test 42 Radar Altimeter Test Annunciation This page intentionally left blank Group Position Label SD Card Slots LabelsSelect Large MFD Knob Select Page Group Functional Display Map Aux GroupMap Group Wx Group opt MFD Soft Key Map Map range Icons for enabled map featuresNavigation Map Pages Map orientation Selecting Page Options Default Navigation MapEditing Information Group Changing the Navigation Map Range Decluttering Map PagesMap Range Overzoom Icon Map Range Feature Features Shown at Each Decluttering Level Panning Map Pointer Selecting Items on the Map Press the small MFD knob again to return to panning Measuring Distances Press the small MFD knob to stop measuring Map Setup Customizing Navigation Map PagesPress the small MFD knob to return to the Navigation Map Navigation Map Page Menu Selections Map Feature Options Map Orientation North Up At 18 Navigation Map North Up At Orientation Range Selection Auto Zoom OBS mode is turned offTurn the small MFD knob to select On or Off Activating Auto Zoom Land Data 20 Navigation Map Land Data Track Vector Length Track Vector Aircraft Present Position Turn the small MFD knob to select the On or Off Wind Vector Nav Range Ring Range Ring Radius Range Ring with Compass Rose Topo Data Topo Data Off Topo Data On 190-00601-02 Rev. E Garmin G600 Pilot’s Guide Topo Scale 29 Navigation Map Topo Scale Terrain Data Terrain Data OffTerrain Data Terrain Elevation Scale Terrain Data Icon Terrain Scale 33 Navigation Map Terrain Scale Obstacle Data Viewing Range 36 Terrain Altitude/Color Correlation Turn the small MFD knob to select the viewing range or Off 38 Navigation Map Obstacle Data Selection Lat/Lon Viewing Range Lat/Lon Reference Information Field of View 41 Navigation Map Field of View Selection Field of View Borders 42 Navigation Map Field of View on the MFD Weather Feature Options Optional Press the small MFD knob to return to the Navigation Map Nexrad Viewing Range 45 Nexrad Viewing Range Selection Turn the small MFD knob to turn the function on or off Nexrad Cell Movement Nexrad Legend 47 Nexrad Legend Selection Lightning Viewing Range 48 Lightning Viewing Range Selection All types of traffic displayed Traffic Feature Options OptionalNo traffic displayed Traffic Alerts Only displayed Aviation Feature Options 50 Navigation Map Page Menu Traffic Options SafeTaxi Viewing Range 52 Navigation Map Safe Taxi Viewing Range Selection Runway Extension Range 53 Navigation Map Runway Extension Selection INT/NDB Viewing Range 54 Navigation Map INT/NDB Viewing Range Selection VOR Viewing Range 55 Navigation Map VOR Viewing Range Selection Class B/TMA Airspace Viewing Range 56 Navigation Map Class B/TMA Viewing Range Selection Class C/TCA Airspace Viewing Range 57 Navigation Map Class C/TCA Viewing Range Selection Class D Airspace Viewing Range 58 Navigation Map Class D Viewing Range Selection Restricted Airspace Viewing Range MOA Military Viewing Range 60 Navigation Map MOA Military Viewing Range Selection Other/ADIZ Airspace Viewing Range 61 Navigation Map Other/ADIZ Viewing Range Selection TFR Viewing Range optional 62 Navigation Map TFR Viewing Range Selection Airways 63 Airways Selection Map Display Split Screen OptionalCurrent Video Source Selected Video Source Aux Mode Pages Airspeeds Glide, VR, VX, and VYDual Unit Synchronization CDI and Baro 67 Aux Mode System Setup Page Menu Display Brightness 69 Aux Mode Display Brightness Mode Selection Airspeed Reference Marks Turn the small MFD knob to select the value and press ENT PFD Options Wind VectorTurn the small MFD knob to select the style and press ENT Synchronization Dual Installations Only Turn the small MFD knob to select on or OFF Press ENT Barometric Correction default on Selected CDI default OFF Date and Time U.S. Time Zone Offsets Press the small MFD knob to exit adjustments MFD Display Units System Display Units 76 Altitude and Vertical Speed MFD Display Units 79 Temperature System Display Units XM Information Optional XM Entertainment Radio Optional 81 XM Entertainment Radio System Status Scroll Bar External Video optional Select Video Source Setup ZoomPanning Brightness Adjustment Contrast Adjustment Saturation Adjustment Restore DefaultsRestore Defaults will be highlighted. Press the ENT key While viewing the External Video page, press the Menu key Position Reporting optional StatusReport Type Turn the small MFD knob to select the reporting frequency Press the small MFD knob to exit editingSend Soft Key Label Automatic Flight Following AFF 94 Select AFF Reporting Period Frequency Iridium Phone Operation Optional Outgoing calls are not affected Turn the small MFD knob to highlight the desired selectionReceived through the Iridium phone Call Suppression Managing the Phone Book Creating Phone Number Names Creating Phone Numbers with the Rotary Knobs 98 Phone Book Number Entry Press the key for the group of desired numbers Creating Phone Numbers with Soft KeysSelecting a Phone Book Catalog Entry Deleting a Phone Book Catalog Entry Phone VolumeAdjusting the Phone Volume with the Rotary Knobs Editing a Phone Book Catalog Entry Press to Adjusting the Phone Volume with the Soft KeysMaking a Phone Call Attenuate Answering a Phone Call 106 Incoming Call Pop-Up Flight Plan Pages Active Flight PlanFor Waypoint Active Flight Plan Detail Active Flight Plan OptionsTo change data fields on the Active Flight Plan Setting the Altitude Minimums Alerter Press the small MFD knob to remove the cursor Facility Name Facility Location Map Orientation Waypoint InformationPress ENT to activate the selected value Lat/Lon Selecting a Waypoint Turn the small MFD knob to show FPL, NRST, or Recent Waypoint Information Detail Facility Information Window RunwayAirport Frequency Window Ident/Facility/City Selection Facility NameCity Press the small MFD knob to exit Runway Information SelectionFacility Frequency Selection Airport Directory Press the small MFD knob to activate the cursor Waypoint Weather Information Optional 122 Waypoint Weather Information Textual METARs and TAFs Charts Page Optional 123 Flight Page 3 Charts Viewing Charts 124 Chart Scroll Bars Charts Selecting a New Chart by Airport Press ENT to display the desired chart Selecting a New Chart by FPL, NRST, or Recent Change Day/Night View Terrain Avoidance Terrain ConfigurationsTerrain Proximity TAWS-B Optional Terrain-SVT Optional Traffic Avoidance None Proximity w Annunciations Are generated Unit InstalledG600 Terrain None Proximity 500W-series Taws Unit No MFD Annunciations Terrain is more than 1000 ft below the aircraft Terrain ScaleTerrain is more than 100 ft above the aircraft Terrain Scale Color Codes System must have a valid 3-D GPS position solution Terrain Proximity Turn the small MFD knob to the Terrain Displaying Terrain ProximityTurn the large MFD knob to the MAP page group Terrain Proximity Page Display on the Terrain Terrain Proximity Page 120 Arc or 360 Rings Terrain Proximity Page Display on a Navigation Map Terrain Proximity Page Aviation Data Press ENT to save the highlighted value Navigation Map Page with Terrain Data Displayed Terrain Proximity Limitations Terrain Awareness and Warning System TAWS-B Optional TAWS-B RequirementsTAWS-B Limitations Computing GPS Altitude for Taws Baro-Corrected Altitude Versus GPS-MSL Altitude Using Taws Displaying Taws Data Taws Location Press the RNG keys to display a larger or smaller area Displaying Taws InformationChanging the Taws Page View Between 360 and Arc Manually Testing the Taws System Showing/Hiding Aviation Information on the Taws Press the ENT key to confirm the selection Taws System Test OK Taws System Failure Taws Alerts Taws Alert Pop-Up Key presses to continue TAWS-B Alerting Colors and Symbology Taws Alert Colors and Symbology RTC-C, ITI-C RTC-W, ITI-W Pull UpROC-W, IOI-W Pull Up ROC-C, IOI-C Excessive Descent Rate Alert 18 Excessive Descent Rate Alert Criteria Forward Looking Terrain Avoidance Premature Descent Alerting 19 PDA Alerting Threshold Inhibiting/Enabling Taws Alerting Five-Hundred Aural Alert Negative Climb Rate After Take-Off Alert NCR 21 Negative Climb Rate NCR Alert Criteria Taws System Status Taws Not Available AlertTaws Failure Alert External Taws 22 Taws Annunciations from a 500W-series Unit Terrain-SVT Terrain-SVT Page 120 Arc or 360 Rings 23 Terrain-SVT 360 and Arc Views Terrain-SVT Page Aviation Data Inhibiting/Enabling Terrain-SVT Alerting Synthetic Vision Alerts and Annunciations 27 Terrain-SVT Advisory Pop-Up on the MFD Signal No GPS positionTerrain-SVT Alerts Summary TAS Traffic Optional Displaying and Operating Traffic TAS Systems Switching from Standby Mode to Operating Modes Range Ring Below Ft to 2700 ft Changing the altitude display modeAltitude Display Displayed Traffic Range TAS Symbology 12 TAS Modes Traffic System StatusUnit is self-reporting a failure 13 TAS Failure Annunciations Selected display range 14 TAS Traffic Status Annunciations Traffic Pop-Up Traffic Pop-Up TIS Traffic Optional Traffic Map Displaying traffic on the Traffic Map 30 Traffic Map Page TIS TIS Symbology 15 TIS Traffic Symbols TIS Limitations 190-00601-02 Rev. E Garmin G600 Pilot’s Guide TIS Alerts TIS System Status 16 TIS Failure Annunciations Switching Between TIS Operating Modes Press the ENT key Descending Traffic service is unavailable or out of rangeDisplay range From the display Using XM Satellite Weather Products XM Weather OptionalCustomizing the XM Weather Map 32 Weather Data Link Setup Menu Options Press ENT to save a selection Menu Item Adjustment 19 Weather Page Menu Setup Options Are Mutually Exclusive XM Weather Symbols and Product Age20 Weather Product Symbols and Aging Times Winds Aloft County Warnings Cyclone Warnings 21 Weather Symbols Weather Legends 34 Weather Legends Nexrad 35 XM Weather Nexrad Reflectivity 36 Nexrad Weather Legend Nexrad Limitations Nexrad radar images may have certain limitations Weather Page Map Orientation Nexrad Data Viewing Range Nexrad Legend 39 Nexrad Legend Selection Echo Tops 40 XM Weather Echo Tops Echo Top Data Viewing Range 41 Echo Top Viewing Range Selection Cloud Tops 42 XM Weather Cloud Tops Cloud Top Data Viewing Range 43 Cloud Top Viewing Range Selection XM Lightning Lightning Data Viewing Range Cell Movement 46 XM Weather Cell Movement Cell Movement Data Viewing Range 47 Cell Movement Viewing Range Selection SIGMETs and AIRMETs 48 XM Weather AIRMETs SIGMET/AIRMET Viewing Range 49 SIGMET/AIRMET Viewing Range Selection METARs 50 XM Weather Graphic METARs Metar Viewing Range 51 Metar Viewing Range Selection Surface Analysis and City Forecast 52 XM Weather Surface Analysis and City Forecast Surface Data Viewing Range 55 XM Weather Stationary Front Surface Data Time 58 Surface Data Time Selection Freezing Level 59 XM Weather Freezing Levels Freezing Level Viewing Range 60 Freezing Level Viewing Range Selection Winds Aloft 61 XM Weather Winds Aloft Winds Aloft Data Viewing Range 63 Winds Aloft Data Viewing Range Selection Winds Aloft Altitude 64 Winds Aloft Altitude Selection County Warnings 65 XM Weather County Warnings County Data Viewing Range 66 County Data Viewing Range Selection Weather Radar Garmin GWX 68 Radar DescriptionPrinciples of Pulsed Airborne Weather Radar Antenna Beam Illumination 67 Radar Beam from 12 inch Antenna Radar Signal Attenuation Compensates for much of this distance attenuation Radar Signal Reflectivity Precipitation Ground Returns Angle of Incidence Operating Distance Maximum Permissible Exposure Level Mpel GWX Basic Antenna Tilt Setup Practical Application Using the Basic Tilt Setup Weather Mapping and Interpretation Weather display Interpretation Thunderstorms 22 Precipitation Intensity Levels Squall Line Steep Gradient Hook or Finger 73 Cell Irregularities Tornadoes Shaped notches Doughnut shapesHail Bearing Line Radar Operation in Weather ModeOperating Mode Weather Alert GWX Only Control Displaying Weather on the Weather Radar Press the RNG keys to select the desired range Vertically Scanning a Storm Cell Not available with all radars Adjusting the Antenna Tilt Angle 79 Bearing Line Adjustment Turn the small MFD knob to adjust the Tilt value Adjusting GainAdjusting Antenna Tilt on the Horizontal Scan Display Turn the small MFD knob to adjust the Gain Restore Calibrated Gain Sector Scan GWX Radars Only Turn the small MFD knob to select FULL, 60, 40, or 20 scan Antenna Stabilization Weather Attenuated Color Highlight WatchGWX Radars Only Weather Alert GWX Radars Only Weather Alerts Ground Mapping and Interpretation Ground Target Return Intensity Levels100 Press the Mode soft key 90 Ground Radar Operation Caution Gfds Weather Optional 91 Select Gfds Weather Gfds Registration Register With Gfds 94 Gfds Registration Page Default and Completed Deactivate Unit Registration With Gfds Using Gfds Satellite Weather Products Customizing the Gfds Weather Map 96 Weather Data Link Setup Menu Options 24 Gfds Weather Page Menu Setup Options 98 Weather Page Map Orientation Gfds Data Request 99 Select Gfds Data Request Destination Gfds Data Request Gfds Data Request CoveragePresent Position Gfds Data Request Flight Plan Gfds Data Request Turn the large MFD knob to highlight Waypoint. Press ENT Waypoint Gfds Data Request Gfds Data Request Auto Request Diameter/Route Width Gfds Data Request Gfds Data Request Manual Request Gfds Data Request Status Window Precipitation Precip Data Viewing Range Precip Legend Turn the large MFD knob to highlight Precip Legend Gfds Infrared Satellite IR SAT Data Viewing Range 109 Gfds Infrared Satellite Data Map Display and Legend IR SAT Data Viewing Range 110 Gfds IR SAT Viewing Range Selection Range 111 Gfds Data Link Lightning and Legend Data Link Lightning Data Viewing Range 112 Gfds Lightning Viewing Range Selection SIGMETs and AIRMETs SIG/AIR Localized Sigmet Icing Sigmet Line 114 Gfds Weather AIRMETs/SIGMETs Detail and Legend Turn the large MFD knob to highlight SIG/AIR Viewing Range 115 Gfds SIG/AIR Viewing Range Selection Cursor Location Product Age Selected Metar VFR 116 Gfds Weather Graphic METARs and Legend 117 Metar Viewing Range Selection 118 Gfds Weather Winds Aloft 120 Winds Aloft Data Viewing Range Selection 121 Winds Aloft Altitude Selection Additional Features Optional ChartView and FliteCharts electronic charts Viewing Charts ChartView Chart Chart Panning Vertical Scroll Bar Horizontal Scroll Bar Choosing a Chart for the Current Airport Press ENT to accept and view the selected chart Selected Chart for the Current Airport ChartView shown Selecting a Chart by Identifier Airport Identifier Selection Selecting a New Chart by FPL, NRST, or Charts Menu Selections Barometric Minimums Source Selection Viewing Chart NOTAMs 5.3 Day/Night View ChartView Optional Chart NOTAMs Cycle Number and Revision Power-up Page Annunciations and Definitions System is verifying chartInstalled for the first time Effectivity Viewing Chart Details in ChartView 14 Detail of the Selected Chart Header Shown Press the Back key to return to the view of the full chart FliteCharts Database is installed Is not configured forFliteCharts. Contact a For the FliteCharts SafeTaxi Taxiway Identification Hot Spot OutlineDcltr Soft Key Removes Taxiway Markings Using SafeTaxi DeclutteringHot Spot Information SafeTaxi Cycle Number and Revision Spot HotBorder Name SafeTaxi Database is Current SafeTaxi Database Not Available Activating XM Satellite Radio Services XM Radio Entertainment 190-00601-02 Rev. E Garmin G600 Pilot’s Guide XM Information 18 XM Information Turn the large MFD knob to Aux Mode XM Entertainment Radio Channel Categories 20 XM Category List Selecting an XM Radio Channel 22 XM Channel Selection XM Radio Volume Volume Bar Graph Volume Soft Key LabelVolume Bar Graph Volume Soft Key Labels XM Radio Channel Presets Press and hold a preset soft key, such as PS1 GDL 69/69A Data Link Receiver Troubleshooting GDL 69 Status OK LRU Info Window Autopilot Operation Autopilot TestAutopilot Disconnect Heading Altitude Capture Optional InterfaceSelected Heading Box Engage your autopilot in Gpss navigation mode Autopilot Operation with Gpss Enabled AutopilotsAutopilot Navigation Engage your autopilot in Heading mode Autopilot Operation with the GDU 620 Emulating GpssHeading Bug Inactive Indication Flight Director Display SVT Off SVT On Synthetic Vision Technology Optional SVT 32 Synthetic Vision Imagery PFD SVT Operation 33 SVT Soft Keys To enable SVT Activating and Deactivating SVT SVT Features Flight Path Marker FPM3.2 Zero-Pitch Line Horizon Heading Airport SignsHorizon Heading Runway Depiction 39 Depiction of Runway with a Loaded Flightplan Traffic on PFD Traffic on MFD 42 Traffic Depiction on PFD and MFD Obstacles Obstacle AlertObstacles Obstacle Pop-Up Field of View Shaped Lines Depict PFD Field of View angle is approx Press the ENT key to bring up the setup To configure the Field of ViewField of View Unusual Attitudes Blue Band Sky Representation 49 Unusual Attitude Display Brown Band 50 Blue Sky Bar with Full Display Terrain Alerts Module is Service Inoperative ALT key is ALT key is not available DisabledAvailable Service Reset your settings GAD Time-out Fault Service Invalid Fault ServiceRange Fault Service Integrity fault Service HDG features GPS 1/2 is lost ServiceConfig service Service Required Based mode Where LRU Power usage byService. Contact Mismatch Service Communication Halted NAV1/2 Track SystemGPS track Possible severe Check weather radar Weather ahead System Status System Status This page intentionally left blank Map Page Symbols Proximate Advisory PA SafeTaxi SymbolsTraffic Symbols Other Traffic Terrain Obstacle Symbols Obstacle Altitude/Color Correlation Indicator Basemap SymbolsMap Tool Bar Symbols Traffic Enabled and Available Indicator XM Weather Tool Bar Symbols XM Weather Tool Bar SymbolsCloud Top Cloud Top and Echo Top Mutually Exclusive Miscellaneous Symbols Barometric setting Attitude Direction IndicatorAutomatic Terminal Information Service Course Deviation Indicator Disabled DefaultDeparture Procedure Error FAA FCC Fcst Heading Leg Lifr Lnav LOC LOI LON LPV LRU Ltng Minimum Outside Air Temperature Omni Bearing SelectorMinimum Safe Altitude Quantity Standard Terminal Arrival Route statistics System True Traffic AdvisoryTraffic Advisory System Vspeed WPT XTK SD Card Use and Databases Database List Jeppesen Databases Updating the Jeppesen Database Power down the GDU Figure A-2 Database Loading Completed Garmin Databases Navigation Database SD Update Card Updating Garmin Databases Figure A-5 Database Information on the Splash Screen Symbols Index Bearing line 2-27, 4-94, 4-97 GSR 56 1-5, 3-66, 3-69 GTP 59 ILS Nav Status Bar Tacan Vortac XM radio volume Page #05-06 Eastgate