GTX 330/330D Installation Manual 190-00207-02
Page 1-10 Rev. U
1.8.2 TSO/ETSO Deviations
1.9 Operating Instructions
For operating instructions, see Section 5.1 of this document.
See also the GTX 330 Pilot's Guide, Garmin part number 190-00207-02 available from the Garmin website
www.garmin.com.
1.10 Aircraft Station Licensing Requirements
The Telecommunications Act of 1996, effective February 8, 1996, provides the FCC discretion to
eliminate radio station license requirements for aircraft and ships. The GTX 330 installation must comply
with current transmitter licensing requirements. To find out the specific details on whether a particular
installation is exempt from licensing, visit the FCC web site
http://wireless.fcc.gov/aviation.
If an aircraft license is required, make application for a license on FCC form 404, Application for Aircraft
Radio Station License. The FCC also has a fax-on-demand service to provide forms by fax. The GTX 330
owner accepts all responsibility for obtaining the proper licensing before using the transponder.
The UHF transmitter in this equipment is guaranteed to meet Federal
Communications Commission acceptance over the specified operating
temperature range. Modifications to Garmin equipment not expressly approved
by Garmin could invalidate the license and make it unlawful to operate the
equipment.
For non-US installations consult the local spectrum management agency for
requirements.
Table 1-6 TSO/ETSO Deviations
TSO/ETSO Deviation
TSO-C112
1. Garmin was granted a deviation from TSO-C112 to use RTCA DO-178B instead of RTCA DO-178A.
2. Garmin was granted a deviation from TSO-C112 to use RTCA DO-160D instead of RTCA DO-160B.
3. Garmin was granted a deviation from TSO-C112 to use RTCA DO-181C instead of RTCA DO-181.
ETSO-2C112a
1. Garmin was granted a deviation from DO-160D, section 20.3.d.
2. Garmin was granted a deviation from ED-73B, section 1.4.2.2 to mark the equipment's functionallevel on the
chassis in a location not visible when the transponder is mounted in the aircraft.
TSO-C166a 1. Garmin was granted a deviation from TSO-C166a to use RTCA DO-160D instead of RTCA DO-160E.
ETSO-C166a
1. Garmin was granted a deviation from ETSO-C166a to use RTCA/DO-160D instead of RTCA/DO- 160E as
the standard for Environmental Conditions and Test Procedures for Airborne Equipment.
2. Garmin was granted a deviation from ETSO-C166a, section 4.1 and 4.2 to reference the installation manual
for the equipment's ETSO compliance and class for this ETSO.
TSO-C166b
1. Garmin was granted a deviation from TSO-C166b to meet the transponder function requirements of RTCA
DO-181C instead of RTCA DO-181D.
2. Garmin was granted a deviation from TSO-C166b to use RTCA DO-160D instead of the latest revision of
RTCA DO-160.
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