Ads-B Versions; Tis System Capabilities; Mutual Suppression Pulses - Garmin GTX 23 ES Installation Manual

1.3.1 ADS-B Versions

There are three distinct ADS-B versions recognized by regulatory authorities. As shown in the table
below, the Garmin GTX 23 w/ES currently supports ADS-B Out 1090MHz Extended Squitter capability
meeting 'Version 1' ADS-B system requirements.
ADS-BVersion
Version 0
Version 1
Version 2*
*Version required by 2020 ADS-B mandate defined in 14 CFR 91.225

1.4 TIS System Capabilities

Traffic Information Service (TIS) provides a graphic display of traffic advisory information in the cockpit
for non-TCAS equipped aircraft.
TIS is a ground-based service providing relative location of all transponder equipped aircraft within a
specified service volume. The TIS ground sensor uses real time track reports to generate traffic
notification.
Traffic display is available to aircraft equipped with a Mode S data link such as the Garmin GTX 23
transponder. Traffic can then be displayed on a Garmin GDU Primary Flight Display, or GNS 400W/
500W-series unit.
Surveillance data includes all transponder equipped aircraft within the coverage volume. Aircraft without
an operating transponder are invisible to TIS. TIS displays traffic within seven nautical miles from 3000
feet below to 3500 feet above the requesting aircraft.

1.5 Mutual Suppression Pulses

Other equipment on board the aircraft may transmit in the same frequency band as the transponder. DME,
TCAS, or another transponder are examples of equipment that operate in the same frequency band. Mutual
suppression is a synchronous pulse that is sent to the other equipment to suppress transmission of a
competing transmitter for the duration of the transmission. The transponder transmission is suppressed by
an external source, and other equipment on board that transmit in the same frequency band are suppressed
by the GTX 23 transponder. This feature is designed to limit mutual interference.
Page 1-2
Revision A
GTX 23 w/ES Compliant
No
Yes
No
Regulatory Standard/Minimum Performance
Specification
Equipment designed to TSO-166 / RTCA DO-260
Equipment designed to TSO-166a / RTCA DO-260A
Equipment designed to TSO-166b / RTCA DO-260B
GTX 23 Installation Manual
190-00906-01