Garmin GTS 8000 Pilot's Guide

GTS Traffic Systems

Pilot’s Guide

© 2014 Garmin Ltd. or its subsidiaries. All rights reserved.

Garmin International, Inc., 1200 East 151st Street, Olathe, KS 66062, U.S.A.

Tel: [phone]	Fax: [phone]
Garmin AT, Inc., 2345 Turner Road SE, Salem, OR 97302, U.S.A.
Tel: [phone]	Fax [phone]
Garmin (Europe) Ltd., Liberty House, Bulls Copse Road, Hounsdown Business Park, Southampton,
SO40 9LR, U.K.
Tel. [phone]	Fax [phone]
Garmin Corporation, No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
Tel: [phone]	Fax: [phone]

At Garmin, we value your opinion. For comments about this guide, please e-mail: [e-mail]

This part shall comply with Garmin Banned and Restricted Substances document, 001-00211-00.

www.garmin.com

https://fly.garmin.com/fly-garmin

Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without the express written permission 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 for personal use, 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.

		Record of Revisions
Revision	Date	Description
A	12/02/09	Production release.
B	3/21/14	Added new GTS models and reorganized/edited content.

March 2014

Printed in the U.S.A.

LIMITED WARRANTY

This Garmin product is warranted to be free from defects in materials or workmanship for two years from the date of purchase. Within this period, Garmin will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts and labor, provided that the customer shall be responsible for any transportation cost. This warranty does not cover failures due to abuse, misuse, accident, or unauthorized alterations or repairs.

THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE.

IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the exclusion of incidental or consequential damages, so the above limitations may not apply to you.

Garmin retains the exclusive right to repair or replace the unit or software, or to offer a full refund of the purchase price, at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.

To obtain warranty service, contact your local Garmin Authorized Service Center. For assistance in locating a Service Center near you, visit the Garmin web site at http://www.garmin.com or contact Garmin Customer Service at 866-739-5687.

190-00587-02 Rev. B

Garmin GTS Traffic Systems

i

WARNINGS AND CAUTIONS

WARNING: The GTS TAS and TCAS I systems are intended for advisory use only to aid the pilot in visually acquiring traffic. No avoidance maneuvers should be based solely upon traffic information. It is the responsibility of the pilot in command to see and maneuver to avoid traffic.

CAUTION: Pilots should be aware of TAS/TCAS I system limitations. TAS/TCAS I systems require intruder transponders to respond to system interrogations. If an intruder transponder does not respond to interrogations due to antenna shading or marginal transponder performance, it will not be displayed, or display may be intermittent. Pilots should remain vigilant for traffic at all times when using TAS/TCAS I systems for non-transponder equipped airplanes or unresponsive airplanes.

ii

Garmin GTS Traffic Systems

190-00587-02 Rev. B

Contents
LIMITED WARRANTY.........................................................................................	i
Warnings and Cautions...................................................................................	ii
System Description.........................................................................................	3
General Theory of Operation..............................................................................	3
Active Surveillance.....................................................................................	3
Passive Surveillance...................................................................................	4
System Specifications........................................................................................	4
System Components.........................................................................................	5
System Processor.......................................................................................	5
Antennas...................................................................................................	6
External Amplifier......................................................................................	8
System Interfaces..............................................................................................	9
Altitude Source..........................................................................................	9
Transponder Interface................................................................................	9
Traffic Display............................................................................................	9
Audio System............................................................................................	9
Landing Gear Position..............................................................................	10
Radar Altimeter.......................................................................................	10
GPS.........................................................................................................	10
Magnetic Heading...................................................................................	10
Air/Ground Switch...................................................................................	10
Control Switches......................................................................................	10
System Operation.........................................................................................	11
Operating Modes............................................................................................	11
Control of Modes.....................................................................................	11
Traffic Information...........................................................................................	11
Other Traffic (OT)......................................................................................	12
Proximity Advisories (PA)..........................................................................	12
Traffic Advisories (TA)...............................................................................	12
Ownship Air/Ground Detection........................................................................	16
Automatic Mode Switching......................................................................	17
Calculated Height Above Ground.....................................................................	17
Ground Traffic Filtering....................................................................................	18
Mode S Targets........................................................................................	18

190-00587-02 Rev. B

Garmin GTS Traffic Systems

1

Radar Altimeter.......................................................................................	18
Calculated Height Above Ground.............................................................	18
ADS-B Receiver...............................................................................................	18
Self-Test.........................................................................................................	20
Q and A..........................................................................................................	21
Glossary........................................................................................................	23

2

Garmin GTS Traffic Systems

190-00587-02 Rev. B

SYSTEM DESCRIPTION

Garmin GTS Traffic Systems are a family of Traffic Advisory Systems (TAS) and Traffic Alert and Collision Avoidance Systems (TCAS). The systems feature both active interrogation of aircraft transponders and passive surveillance of 1090 MHz Extended Squitter ADS-B broadcasts (1090ES).

GTS Traffic Systems include the following products:

•GTS 800 TAS

•GTS 820 TAS and GTS 850 TCAS I

•GTS 825 TAS and GTS 825 TCAS I

•GTS 8000 TCAS II

Terms used in this Pilot’s Guide:

•TAS: Refers to any TAS system (GTS 800/820/825)

•TCAS I: Refers to any TCAS I system (GTS 850/855)

•TAS / TCAS I: Refers to any TAS or TCAS I system (GTS 800/820/825/850/855)

•TCAS II: Refers to the GTS 8000

NOTE: Details on the GTS 8000 TCAS II operation are not included in this guide. For information on a GTS 8000 TCAS II system, refer to the aircraftspecific installation documentation.

General Theory of Operation

Active Surveillance

GTS Traffic Systems actively interrogate the transponders of other nearby aircraft to determine their bearing, distance, altitude and vertical trend relative to your aircraft. Aircraft with operating transponders are detected, and aircraft with altitude reporting transponders will also include altitude and vertical trend information (level, climbing, or descending). This information is then shown on a compatible traffic display.

GTS Traffic Systems also provide visual and aural alerts to assist in visually acquiring traffic. Aural and visual alerts are provided as a Traffic Advisory (TA) for conflicting traffic.

190-00587-02 Rev. B

Garmin GTS Traffic Systems

3

Passive Surveillance

GTS Traffic Systems can optionally utilize passive surveillance information from an internal ADS-B receiver. The ADS-B receiver uses 1090ES broadcasts from other aircraft that are equipped with 1090ES ADS-B Out. These broadcasts are combined with the active surveillance data to enhance the accuracy of target positions on the display. This is Garmin’s CLEAR CASTM technology, which correlates ADS-B and actively interrogated targets to provide pilots with the most accurate target position. A GPS position source and magnetic heading system are required for passive surveillance functionality.

System Specifications

The specifications for each member of the GTS Traffic Systems family are contained in the table below.

Product	GTS 800	GTS 820	GTS 825	GTS 850	GTS 855
Type	TAS	TAS	TAS	TCAS I	TCAS I
	TSO-C147	TSO-C147	TSO-C147
				TSO-C118	TSO-C118
	(Class A)	(Class A)	(Class A)
ADS-B	TSO-C166b	TSO-C166b	TSO-C166b	TSO-C166b	TSO-C166b
Capability	[Note 1]	[Note 1]	[Note 1]	[Note 1]	[Note 1]
Transmit Power	40 Watts	250 Watts	400 Watts	250 Watts	400 Watts
Maximum Range	22 NM	40 NM	40 NM	40 NM	80 NM
# Targets Tracked	45	75	75	75	75
XPDR Interface Required	None	Mode S	Mode S	Mode S	Mode S
		[Note 2]	[Note 2]	[Note 2]	[Note 2]
External Amplifier Required	No	Yes	No	Yes	No

Table 2 GTS Traffic Systems Specifications

Note 1: Class A1 / Type 1 (Class A1S for single-antenna installations). GTS 800/820/850 require system software version 3.00 or later for TSO-C166b compliance.

Note 2: A compatible Garmin transponder capable of identifying TCAS interrogations is required.

4

Garmin GTS Traffic Systems

190-00587-02 Rev. B

System Components

System Processor

Each GTS Traffic System includes a system processor. The system processor connects to all of the required and optional antennas, displays, controls, and aircraft interfaces.

Figure 1 GTS System Processor

GTS 800/820/850 System Processors

The GTS 800/820/850 systems use a unique system processor. The GTS 800 system processor is different from a GTS 820 or GTS 850 system processor.

GTS 825/855 System Processor

The GTS 825/855 systems share a common system processor known as the “GTS Processor.” The GTS Processor can be configured during installation to be either a GTS 825 TAS or a GTS 855 TCAS I.

190-00587-02 Rev. B

Garmin GTS Traffic Systems

5