Garmin 3X5/G1000 Series Pilot's Manual page 5

WARNINGS / CAUTIONS / NOTES
Copyright Information
CAUTION
Unauthorized repairs or modifications could result in permanent
damage to the equipment, and void your warranty and your authority
to operate this device under FCC and FAA regulations.
NOTE
The coverage expected for all operations (transponder replies to ATC,
ADS-B and FIS-B reception) from the Garmin GTX 3X5 is limited to line
of sight. Low altitude or aircraft antenna shielding by the aircraft itself
may result in reduced range. Range can be improved by climbing to a
higher altitude.
NOTE
This product does not contain any user-serviceable parts. Repairs
should only be made by an authorized Garmin service center.
NOTE
It is the responsibility of the GTX 3X5 owner, residing outside of the
U.S., to obtain proper licensing before using the transponder.
190-01499-01 Rev. A GTX 3X5 Series Transponder G1000 Pilot's Guide iii