Garmin GNC 420 Installation and operating instructions

400/500 Series
Display Interfaces
Pilot’s Guide Addendum
• Goodrich STORMSCOPE
®
WX-500 Series II Weather Mapping Sensor
• Goodrich SKYWATCH
®
Traffic Advisory System (Model SKY497)
• Goodrich SKYWATCH
®
HP Traffic Advisory System (Model SKY899)
• Bendix/King
®
KTA870 TAS/KMH880 Multi-Hazard Awareness System
• Ryan TCAD 9900B and 9900BX
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Garmin®is a registered trademark
of Garmin Ltd. or its subsidiaries
and may not be used without the
express permission of Garmin Ltd.
or its subsidiaries. STORMSCOPE®
and SKYWATCH®are registered
trademarks of Goodrich Avionics
Systems, Inc. Bendix/King®is a
registered trademark of Honeywell
International, Inc.
This Pilot’s Guide Addendum is written for Garmin 400/500 Main System Software Version 4.00 (400 Series)
and 4.00 (500 Series) or above, and is not applicable for earlier software versions.
© Copyright 1999-2003 Garmin Ltd. or its subsidiaries. All Rights Reserved.
Garmin International, Inc., 1200 East 151
st
Street, Olathe, KS 66062, U.S.A.
Tel. [phone] or 800/800.1020 Fax [phone]
Garmin (Europe) Ltd., Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey SO51 9DL, U.K.
Tel. [phone] Fax [phone]
Garmin Corporation, No. 68, Jangshu 2
nd
Road, Shijr, Taipei County, Taiwan
Tel. [phone] Fax [phone]
Except as expressly provided herein, no part of this addendum may be reproduced, copied, transmitted,
disseminated, downloaded or stored in any storage medium, for any purpose without the express prior
written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual and
of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to
print one copy of this manual or of any revision hereto, provided that such electronic or printed copy of this
manual or revision must contain the complete text of this copyright notice and provided further that any
unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.
Information in this document is subject to change without notice. Garmin reserves the right to change or
improve its products and to make changes in the content without obligation to notify any person or
organization of such changes or improvements.
March 2003 Part Number 190-00140-10 Rev. D Printed in U.S.A.
Foreword
,
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1
Foreword
Warnings and Cautions
,
,
,
,
,
CAUTION: The Global Positioning System is operated by the United States government, which is
solely responsible for its accuracy and maintenance. The system is subject to changes which could
affect the accuracy and performance of all GPS equipment. Although the Garmin 400/500 Series
units are precision electronic NAVigation AIDS (NAVAID), any NAVAID can be misused or misinter-
preted and therefore become unsafe.
CAUTION: Use the 400/500 Series units at your own risk. To reduce the risk of unsafe operation,
carefully review and understand all aspects of the Owner’s Manual and the Flight Manual Sup-
plement, and thoroughly practice basic operation prior to actual use. When in actual use, carefully
compare indications from the unit with all available navigation sources, including the information
from other NAVAIDS, visual sightings, charts, etc. For safety, always resolve any discrepancies before
continuing navigation.
CAUTION: Use the Garmin 400/500 Series units and the Traffic/Weather Interface at your own risk.
To reduce the risk of unsafe operation, thoroughly practice basic operation prior to actual use.
When in actual use, carefully compare indications from the Garmin Series Unit with all available
navigation sources, including the information from other NAVAIDS, visual sightings, charts, etc. For
safety, always resolve any discrepancies before continuing navigation. The altitude calculated by the
Garmin 400 Series Unit is the geometric height above mean sea level and could vary significantly
from the altitude displayed by pressure altimeters in the aircraft.
CAUTION: The Jeppesen database incorporated in the Garmin 400/500 Series units must be updated
regularly in order to ensure that its information is current. Updates are released every 28 days. A
database information packet is included in your Garmin 400/500 Series unit package. Pilots using
an out-of-date database do so entirely at their own risk.
CAUTION: The Traffic and Weather information contained in this Pilot’s Guide Addendum is not
intended to replace the documentation that is supplied with the applicable Garmin 400/500 Series
unit. The user of the Traffic and Weather Interface should know how to operate the 400/500 unit
and be knowledgeable about the information in the 400/500 Pilot’s Guide.
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2
Foreword
Table of Contents
FOREWORD
Warnings and Cautions .......................................................................................................... 1
Table of Contents.................................................................................................................... 2
SECTION 1—INTRODUCTION ............................................................................................. 4
SECTION 2—GOODRICH STORMSCOPE INTERFACE
STORMSCOPE Description .................................................................................................... 5
Power-Up Self-Test ................................................................................................................. 5
User-initiated Self-Test ............................................................................................................ 5
Displaying Storm Data on the Map Page ................................................................................. 6
Clearing the Map Page............................................................................................................ 7
Changing the Storm Data Display Range................................................................................. 7
Weather Page-400 Series.........................................................................................................8
Weather Page-500 Series.........................................................................................................8
Weather Display ..................................................................................................................... 9
Weather Display Interpretation ............................................................................................... 9
SECTION 3—SKYWATCH INTERFACE
Introduction ......................................................................................................................... 10
SKYWATCH Description ...................................................................................................... 10
Power-up Self-Test ................................................................................................................ 10
User-initiated Test ................................................................................................................ 11
Voice Announcements .......................................................................................................... 11
Switching Between Standby and Operating Modes ............................................................... 11
Altitude Display Mode .......................................................................................................... 12
Traffic Page ........................................................................................................................... 12
Note: This Pilot’s Guide Addendum is not
intended to replace the documentation that is
supplied with the Garmin 400/500 Series unit
and the applicable weather/traffic system.
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3
Foreword
Table of Contents
Traffic Warning Window ............................................................................................................. 13
Traffic Page Display Range...........................................................................................................13
Configuring Traffic Data on the Map Page ...................................................................................14
Highlighting Traffic Data Using Map Panning..............................................................................15
Monitoring Traffic........................................................................................................................ 16
Failure Response ......................................................................................................................... 16
Description of Traffic Advisory Criteria........................................................................................ 16
SECTION 4—RYAN TCAD INTERFACE
Ryan TCAD Description .............................................................................................................. 17
Operator Controls and Basic Displays.......................................................................................... 18
Configuring TCAD Data on the Map Page ................................................................................... 19
Monitoring Traffic........................................................................................................................ 20
Highlighting Traffic Data Using Map Panning..............................................................................20
TCAD Setup Page ........................................................................................................................ 21
Traffic Page Fields........................................................................................................................ 21
Air Shield .................................................................................................................................... 22
Traffic Warning Window ............................................................................................................. 22
Threat Acquisition ....................................................................................................................... 23
Audible and Visible Alerts ........................................................................................................... 23
Fault Displays.............................................................................................................................. 23
Limitations .................................................................................................................................. 23
Notes........................................................................................................................................... 24
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4
Section 1
Introduction
SECTION 1
INTRODUCTION
The Garmin 400/500 Series units provide the display interface and control for the following traffic and
weather devices/systems:
• Goodrich STORMSCOPE
®
WX-500 Series II Weather Mapping Sensor
• Goodrich SKYWATCH
®
Traffic Advisory System (Model SKY497)
• Goodrich SKYWATCH
®
HP Traffic Advisory System (Model SKY899)
• Bendix/King
®
KTA870 TAS/KMH880 Multi-Hazard Awareness System
• Ryan TCAD 9900B and 9900BX
The interface capability allows traffic and weather data to be shown on the 400/500 color display,
which gives you the ability to quickly identify traffic and weather hazards relative to your aircraft.
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5
Section 2
Goodrich STORMSCOPE Interface
)
SECTION 2
GOODRICH STORMSCOPE INTERFACE
Goodrich STORMSCOPE Description
Refer to the WX-500 Pilot’s Guide for a detailed description of the WX-500 STORMSCOPE.
The Goodrich STORMSCOPE WX-500 Series II Weather Mapping Sensor is a passive weather avoid-
ance system that detects electrical discharges associated with thunderstorms within a 200-nm radius of
the aircraft. The STORMSCOPE measures relative bearing and distance of thunderstorm-related electrical
activity and reports the information to the display. Interfaces are currently only available for the
WX-500 Series II STORMSCOPE System.
Power-Up Self-Test
The power-up self-test ensures that the WX-500 functions are operating properly. An error message is
displayed on the Message Page if data is no longer being received.
User-Initiated Test
In addition to the power-up test, the WX-500 performs a continuous self-test. This continuous
self-test is performed several times per minute. A user-initiated test can also be performed. The WX-500
Pilot’s Guide lists all of the possible faults, probable causes, and recommended actions if system failures are
noted.
To perform a user-initiated test:
1. From the default Nav Page, turn the small right knob to select the Weather Page.
2. Press MENU to display the Page Menu.
3. Turn the small right knob to select ‘Self-Test?’ and press ENT.
In addition to the power-up test, the user can
perform a self-test that is executed through the
400/500 Series unit display.
The 400/500 Series units perform a self-test during
power-up to ensure proper operation of the
applicable interface components.
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6
Section 2
Goodrich STORMSCOPE Interface
)
Displaying Storm Data on the Map Page
The Map Page displays cell or strike information using yellow lightning strike symbology overlaid on
a moving map. This added capability improves situational awareness, which in turn makes it much easier
for the pilot to relate storm activity to airports, navaids, obstacles and other ground references.
Storm data is displayed on the Map Page only if aircraft heading is available.
In normal operation, the current mode and rate are displayed in the top right corner of the Map Page.
The mode is described by the word “STRIKE” when in strike mode, or “CELL” when in cell mode.
The strike data display phases are:
1. Lightning Symbol (latest strikes; less than one minute; a black guard band is placed around the strike symbol
during the first six seconds of display)
2. Large Plus “+” sign (more than one minute old)
3. Small Plus “+” sign (more than two minutes old)
4. Strike Data is no longer displayed (after three minutes)
Cell mode uses a clustering program to identify
clusters of electrical activity that indicate cells. Cell
mode is most useful during periods of heavy storm
activity. Displaying cell data during these periods frees
the user from sifting through a screen full of discharge
points and helps to better determine where the storm
cells are located.
Strike Rate
Storm Activity
Storm Data Displayed on the Map Page
Cell Mode
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7
Getting Started
Main Page Sequence
7
Goodrich STORMSCOPE Interface
Section 2
To configure storm data on the Map Page:
1. From the default Nav Page, turn the small right knob to select the Map Page.
2. Press MENU to display the Page Menu.
3. Turn the small right knob to select ‘Setup Map?’ and press ENT.
4. The flashing cursor highlights the GROUP field. Turn the small right knob to display the Map Setup Options
Menu. Turn the small right knob to select ‘Weather’ and press ENT.
5. The flashing cursor highlights ‘Weather’ in the GROUP field. Turn the large right knob to select the desired
lighting mode field. Turn the small right knob to select the desired mode and press ENT. Repeat for the
remaining fields and options.
6. Return to the Map Page by pressing CLR.
Clearing the Map Page
Routinely clearing the Map Page of all discharge points is a good way to determine if a storm is
building or dissipating. In a building storm discharge points reappear faster and in larger numbers. In a
dissipating storm discharge points appear slower and in smaller numbers.
To clear the Map Page of all discharge points:
1. From the default Nav Page, turn the small right knob to select the Map Page. Press MENU to display the
Page Menu.Turn the small right knob to select ‘Clear Storm Data?’ and press ENT.
Changing the Storm Data Display Range
Storm data can be displayed on the 2000 nm zoom scale, but the data only goes out as far as the
STORMSCOPE can report (200 nm). The 500 nm zoom scale will display all lightning data. Scales
greater than 500 nm do not display any further STORMSCOPE data.
To select a storm data display range:
1. From the default Nav Page, turn the small right knob to select the Map Page. Press MENU to display the
Page Menu.
2. Turn the small right knob to select ‘Setup Map?’ and press ENT. Turn the small right knob to select the
Weather Group and press ENT. Turn the large right knob to select the desired lightning symbol option. Turn
the small right knob to select the desired range and press ENT.
Only the data that is viewable on the screen is
included in the strike rate. Therefore, you can zoom
in and see what the strike rate is locally, or you can
zoom out for a bigger picture.
Also, when panning with the cursor on the Map
Page (see page 15), you can zoom in and isolate
individual cells. Please note, however, that strike
data is not typically updated on the Map Page
while the panning cursor is on. Therefore, when the
panned map is first displayed, the data is only a
“snapshot” of conditions (as mentioned above, the
strike rate will reflect viewable data only).
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8
Getting Started
Main Page Sequence
8
Goodrich STORMSCOPE Interface
Section 2
Clearing discharge points from the Map Page.
Weather Page—400 Series
In addition to the Map Page, storm data can also be viewed on the Weather Page. In the 400 Series,
When the STORMSCOPE is connected to the unit, the Weather Page appears after the Traffic Page in the
sequence of Nav Pages (resulting in a total of eight pages).
Weather Page—500 Series
In addition to the Map Page, storm data can also be viewed on the Weather Page. In the 500 Series,
when the STORMSCOPE is connected to the unit, the Weather Page appears after the Traffic Page in the
sequence of Nav Pages (resulting in a total of six pages).
Changing the storm data display range on the Map
Page.
Default NAV Map NAVCOM Position Satellite Status VNAV
Weather
Traffic
Default NAV Map NAVCOM Satellite Status
Weather
Traffic
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9
Getting Started
Main Page Sequence
9
Section 2
Goodrich STORMSCOPE Interface
Weather Display
The Weather Page displays either a 360° or a 120° viewing angle. In normal operation, the current
strike rate is displayed in the top right corner, accompanied in the top left corner by the word ‘LTNG’.
When in strike mode, ‘Strike’ is displayed in the lower right hand corner of the Weather Page and when
the unit is in cell mode, ‘Cell’ is displayed in the lower right hand corner of the Weather Page.
To select the desired Weather Display Mode:
1. From the default NAV Page, rotate the small right knob to select the Weather Page.
2. Press MENU to display an options menu.
3. Select the desired display angle from the options menu and press ENT.
Weather Display Interpretation
For weather display interpretation, study the examples in the WX-500 Pilot's Guide which are
designed to help you relate the cell or strike patterns shown on the display to the size and location of
thunderstorms that may be near your aircraft. For weather display interpretation, study the
examples in the WX-500 Pilot’s Guide which are
designed to help you relate the cell or strike patterns
shown on the display to the size and location of
thunderstorms that may be near your aircraft.
Strike Rate
Storm Activity
Weather Display
Orientation Method
Weather Mode
Stormscope Operation
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10
Getting Started
Main Page Sequence
10
Section 3
SKYWATCH Interface
SECTION 3
SKYWATCH INTERFACE
Introduction
With the exception of traffic display range selections, all information in this section pertaining to the
display and control of the Goodrich SKYWATCH (SKY 497) also applies to the Goodrich SKYWATCH HP
(SKY 899) and the Bendix/King KTA 870/KMH 880—this includes TCAS-like symbology. Traffic display
range selections are as follows:
• SKYWATCH (SKY 497)—2 nm, 2 and 6 nm, 6 and 12 nm.
• SKYWATCH HP (SKY 899)—2 nm, 2 and 6 nm, 6 and 12 nm, 12 and 24 nm.
• Bendix/King KTA 870/KMH 880—2 nm, 2 and 6 nm, 6 and 12 nm, 12 and 24 nm, 20 and 40 nm.
SKYWATCH Description
Please, refer to the SKYWATCH Pilot’s Guide for a complete description of the SKYWATCH system.
Power-up Self-Test
Check for the following test criteria on the Traffic Page during power-up:
1. If the SKYWATCH passes the power-up test and your aircraft both has a squat switch and is on the ground,
the Standby Screen is displayed (see sidebar).
2. If the SKYWATCH passes the power-up test and your aircraft both has a squat switch and is airborne, the
Traffic Page is displayed on the 6-nm display range and in the normal altitude display mode.
3 . If the SKYWATCH passes the power-up test and your aircraft does not have a squat switch, the Standby
Screen is displayed.
4 . If the SKYWATCH continues to fail, please refer to the failure response section in the SKYWATCH Pilot’s
Guide on actions to take.
The Standby Screen appears when the
SKYWATCH passes the power-up test. NOTE:
when the system is in standby, the SKYWATCH
does not transmit, interrogate, or track intruders.
Traffic Page showing Bendix/King KTA 870/KMH
traffic near the 40 nautical mile range.
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11
Getting Started
Main Page Sequence
11
SKYWATCH Interface
Section 3
)
)
To begin tracking intruder aircraft
1. Turn the cursor on and highlight STBY.
2. Turn the small right knob to select OPER.
3. Press ENT to confirm operating mode and begin tracking intruder aircraft.
The FAILED message occurs when the system detects an error that prohibits further traffic
display operation as long as this message stays on the screen.
User-initiated Test
A user-initiated test can only be performed when in standby or failed mode.
In addition to the power-up test, the SKYWATCH performs a continuous self-test. This continuous
self-test is performed several times per minute. A user-initiated test of the SKYWATCH Interface can also
be performed.
To perform a user-initiated test:
1. Turn the small right knob to select the Traffic Page.
2. From the Traffic Page, press MENU to display the Page Menu.
3. Turn the small right knob to select ‘Self Test?’ and press ENT.
Voice Announcements
See the SKYWATCH Pilot’s Guide for information on voice announcements.
Switching Between Standby and Operating Modes
The unit must be in operating mode for traffic to be displayed. The ability to switch out of standby
into operating mode on the ground is especially useful for scanning the airspace around the airport before
takeoff.
Operating Mode is confirmed by the display of
‘OPER’ in the upper right-hand corner of the
Traffic Page.
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12
Getting Started
Main Page Sequence
12
SKYWATCH Interface
Section 3 To switch into Operating Mode from Standby Mode:
1. Turn the cursor on and highlight ‘STBY’. Turn the small right knob to select ‘OPER?’.
2. Press ENT to confirm and place the SKYWATCH in operating mode. NOTE: the SKYWATCH switches out of
standby into the 6-nm display range. If your aircraft has a squat switch and you do not manually switch out
of standby, the SKYWATCH will automatically switch out of standby 8 to 10 seconds after takeoff.
To switch into Standby Mode from the Traffic Page:
1. Turn the cursor on and highlight ‘OPER’.
2. Turn the small right knob to select ‘STBY?’.
3. Press ENT to confirm and place the SKYWATCH in standby mode. NOTE: if your aircraft has a squat switch,
STBY is not displayed while you are airborne but will go into standby 24 seconds after landing. This delay
allows the SKYWATCH to remain out of standby during a touch-and-go maneuver.
Altitude Display Mode
To change the Altitude Display Mode:
1. From the Traffic Page, turn cursor on, highlight the current mode and turn the small right knob to cycle
through the options.
2. With each turn of the knob, the screen changes to display the traffic detected within the selected altitude
display range. The 400 Series screen also displays unrestricted traffic (UNR) having a range of maximum
specified by the SKYWATCH Pilot’s Guide. Please, refer to the SKYWATCH Pilot’s Guide for information
regarding altitude display ranges.
3. Note that confirmation is not required. The mode is changed immediately when using the inner knob. Turn
the cursor off when selection is made.
Traffic Page
Traffic can be displayed both on the Map Page (only if heading is available) and on the Traffic Page.
The name of the selected altitude display mode
(ABV: look up, NRM: normal, BLW: look down,
or UNR: unrestricted) is displayed in the upper
left-hand corner of the Traffic Screen. The SKY 497
continues to track up to 30 intruder aircraft within
its maximum surveillance range, regardless of the
altitude display mode selected.
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13
Getting Started
Main Page Sequence
13
SKYWATCH Interface
Section 3
)
Traffic Warning Window
When the unit is not on the traffic page and a traffic threat is imminent, the Traffic Warning Window
is displayed. The Warning Window shows a small thumbnail map and can display the Traffic Page (if the
user presses ENT) or return to the previous page (if the user presses CLR).
The Traffic Warning Window is disabled when the aircraft ground speed is less than 30
knots or when an approach is active.
Traffic Page Display Range
You can change the display range on the Traffic Page at any time.
To change the display range on the Traffic Page:
1. Press the RNG Key to zoom through the following range options:
• 2 nm, 2 and 6 nm, 6 and 12 nm (also, 12 and 24 nm for the SKY 899).
NOTE: SKYWATCH data is only displayed on
the Map Page if suitable aircraft heading data is
available. See the Garmin 400/500 Series Installa-
tion Manual available at your authorized Garmin
service center for details.
Altitude Display Mode
Display Range Traffic Advisory
(with no bearing information)
Operating Mode
Traffic
Traffic Page
Traffic Warning Window
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14
Getting Started
Main Page Sequence
14
SKYWATCH Interface
Section 3
)
Configuring Traffic Data on the Map Page
The display of traffic information is designed to closely resemble the display symbology used by
Goodrich on the SKYWATCH. Traffic is only displayed on the Map Page if aircraft heading data is
available. When heading is not available, Traffic Advisories are displayed as non-bearing banners on
the Map Page.
To configure traffic on the Map Page:
1. Turn the small right knob to select the Map Page.
2. Press MENU to display the Page Menu. Turn the small right knob to select ‘Setup Map?’ and press ENT.
3. The flashing cursor highlights the GROUP field. Turn the small right knob to select Traffic and press ENT.
4. Turn the large right knob to select the desired Traffic Mode option. Turn the small right knob to select the
desired option and press ENT. Repeat the step for Traffic Symbol and Traffic Label.
5. Return to the Map Page by pressing CLR.
Traffic mode allows the operator to choose which traffic is displayed (all traffic, traffic and proximity
advisories, or traffic advisories only). The traffic symbol is the symbol used to depict the type of traffic
(400/500 Series and Goodrich use the same symbology):
• Traffic Advisories (TA)—Yellow
• Proximity Advisories (PA)—White
• Other—White
Proximity Advisories (PA) are displayed as solid white diamonds. SKYWATCH shows these
PAs as hollow diamonds since the SKYWATCH display is monochrome. PAs are defined as
traffic within the 4.0-nm range, within ± 1200 ft. of altitude separation, and are not a traf-
fic advisory (TA).
Selections for configuring traffic data are made from
the Map Setup Menu on the Map Page.
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15
SKYWATCH Interface
Section 3
The traffic label is the altitude separation above or below the symbol and the vertical speed sense arrow
to the right of the symbol. From the Map Page, you can display traffic in a thumbnail format in any of the
top three data fields (top four fields on the 500 Series) on the right side of the Map Page.
To display Thumbnail Traffic on the Map Page
1. Turn the small right knob to select the Map Page.
2. Press MENU to display the Page Menu.
3. Turn the small right knob to select ‘Change Fields?’ and press ENT.
4. Select one of the top three fields (top four fields on the 500 Series). Select TRFC from the Select Field Type
List and press ENT. Note that the thumbnail range defaults to 6 nm and cannot be changed.
Highlighting Traffic Data Using Map Panning
Another map page function is panning, which allows you to move the map beyond its current limits
without adjusting the map scale. When you select the panning function—by pressing the small right knob,
a target pointer flashes on the map display. A window also appears at the top of the map display showing
the latitude/longitude position of the pointer, plus the bearing and distance to the pointer from your pres-
ent position.
To select the panning function and pan the map display:
1. Press the small right knob to activate the panning target pointer.
2. Turn the small right knob clockwise to move up, or turn it counterclockwise to move down.
3. Turn the large right knob clockwise to move right, or turn it counterclockwise to move left.
4. To cancel the panning function and return to your present position, press the small right knob.
When the target pointer is placed on traffic, the traffic range and altitude separation are displayed. The
traffic is identified as:
TA: Traffic Advisory, PA: Proximity Advisory, TRFC: Other Traffic
When a Traffic Advisory is active, the “Traffic”
banner is displayed in the lower right corner of the
Map Page.
When the target pointer is placed on traffic, the
traffic range and altitude separation are displayed.
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16
Section 3
SKYWATCH Interface
Monitoring Traffic
See the information in the SKYWATCH Pilot’s Guide regarding monitoring traffic on the display and
the corresponding actions to take.
Failure Response
Errors indicated by a FAILED screen prevent continued use of the SKYWATCH. Please, see the
Goodrich SKYWATCH Pilot’s Guide for detailed information on Failure Response.
Description of Traffic Advisory Criteria
For a description of Traffic Advisory criteria and display interpretation, please see the SKYWATCH
Pilot’s Guide.
The SKYWATCH Pilot’s Guide contains detailed
information on traffic advisory and display
interpretation .
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17
Section 4
Ryan TCAD Interface
)
SECTION 4
RYAN TCAD INTERFACE
All information in this section pertaining to the display and control of the Ryan 9900B TCAD also
applies to the Ryan 9900BX TCAD except for the following:
• TCAS-like symbology is used in the 9900BX as opposed to the 9900B (similar to SKYWATCH).
• Altitude modes are available similar to SKYWATCH (normal, look up, look down, unrestricted).
• Ranges are manually controlled instead of being automatically re-sized to the current shield.
• Traffic display range selections are different:
• Ryan 9900B—range is slaved to current shield size.
• Ryan 9900BX—2 nm, 2 and 6 nm, 6 and 12 nm, 12 and 24 nm.
Ryan TCAD Description
Refer to the Ryan TCAD Pilot’s Guide for a detailed description of the Ryan TCAD System.
The Ryan TCAD (Traffic and Collision Alert Device) is an on-board air traffic display used to identify
potential collision threats. TCAD computes relative altitude and range of threats from nearby Mode C and
Mode S-equipped aircraft. TCAD will not detect aircraft without operating transponders and those that
are beyond radar coverage. TCAD, within defined limits, creates a shield of airspace around the aircraft,
whereby detected traffic cannot penetrate without triggering an alert.
See the Ryan TCAD Pilot’s Handbook for a
description of the traffic symbols.
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18
Section 4
Ryan TCAD Interface
Operator Controls and Basic Displays
If there is no communication between the unit display and the TCAD unit, a message will appear, noti-
fying the user. After initialization, proceed with operation of the 400/500 Series unit in a normal manner.
TCAD data can be shown in a “thumbnail” view on the Map Page.
TCAD data also displays on both the Traffic Page and the Map Page if heading data is available. The
symbols for closing and parting traffic shown on both the Map Page and the Traffic Page are identical to
those shown on the Ryan TCAD:
• TRFC (White)—Altitude separation >500 feet, steady altitude separation
• TA (Yellow)—Altitude separation <=500 feet, steady altitude separation
• TRFC (White)—Altitude separation >500 feet, closing
• PA (White)—Altitude separation <=500 feet, parting
• TRFC (White)—Altitude separation >500 feet, parting
• TA (Yellow)—Altitude separation <=500 feet, closing
The Map Page can display TCAD traffic in any
of the top three fields (or top four fields on a 500
Series unit) located on the right-hand side of the
display.
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