Garmin GNC 255 User Manual

GTR 225/GNC 255 TSO Installation Manual 190-01182-02
Page 1-10 Rev. B
1.5.2 TSO Deviations
1.5.3 FCC Grant of Equipment Authorization
TSO/ETSO Deviation
TSO-C34e
1. Garmin was granted a deviation from the TSO not to mark TSO number and software part
number on the exterior of the unit.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of an earlier
version as the standard for environmental conditions and test.
3. Garmin was granted a deviation from the TSO to use RTCA/DO-178B instead of an earlier
version to demonstrate compliance for the verification and validation of the computer software.
TSO-C36e
1. Garmin was granted a deviation from the TSO not to mark TSO number and software part
number on the exterior of the unit.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of an earlier
version as the standard for environmental conditions and test.
3. Garmin was granted a deviation from the TSO to use RTCA/DO-178B instead of an earlier
version to demonstrate compliance for the verification and validation of the computer software.
TSO-C40c
1. Garmin was granted a deviation from the TSO not to mark TSO number and software part
number on the exterior of the unit.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of an earlier
version as the standard for environmental conditions and test.
3. Garmin was granted a deviation from the TSO to use RTCA/DO-178B instead of an earlier
version to demonstrate compliance for the verification and validation of the computer software.
ETSO-2C40c
1. Garmin was granted a deviation from the ETSO to have a deflection response of 0.5 to 2.7
seconds.
TSO-C128a
1. Garmin was granted a deviation from the TSO not to mark TSO number and software part
number on the exterior of the unit.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of an earlier
version as the standard for environmental conditions and test.
TSO-C169a
1. Garmin was granted a deviation from the TSO not to mark TSO number and software part
number on the exterior of the unit.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of an earlier
version as the standard for environmental conditions and test.
Model FCC ID IC ID
GTR 225
IPH-01594 1312A-01594
GTR 225A
GTR 225B
GNC 255A
GNC 255B

Garmin GNC 255 Specifications

General

Channels	760
Frequency Range	118.000 to 136.975 MHz
Channel Spacing	25 kHz
Input Voltage	11 to 33 VDC
Dimensions	159 x 50 x 193 mm