Page 20
GTX 320/320A Installation Manual
Rev L
190-00133-01
A.2
ENVIRONMENTAL QUALIFICATION FORM
NOMENCLATURE:
GTX 320 Airborne ATC Transponder Equipment
TYPE/MODEL/PART NO.: 010-00135-00/10 TSO - C74c Class 1A
MANUFACTURER'S SPECIFICATION AND/OR OTHER APPLICABLE SPECIFICATION: 004-00042-00
MANUFACTURER:
GARMIN INTERNATIONAL
ADDRESS:
1200 E 151st St, Olathe, KANSAS 66062
Conditions
RTCA DO-160C
Section
Description of Conducted Tests
Temperature and Altitude
4.0
Equipment tested to Categories A1 & D1 except
as noted
Low Temperature
4.5.1
High Temperature
4.5.2. & 4.5.3
In-Flight Loss of Cooling
4.5.4
Cooling air not required
Altitude
4.6.1
Decompression
4.6.2
Overpressure
4.6.3
Temperature Variation
5.0
Equipment tested to Category C
Humidity
6.0
Equipment tested to Category A
Shock
7.0
Equipment tested according to DO-160C, Par.
7.2.1
Operational
7.2
Crash Safety
7.3
Vibration
8.0
Equipment tested without shock mounts to
Categories B, M and N (Table 8-1)
Explosion
9.0
Equipment identified as Category X, no test
required
Waterproofness
10.0
Equipment identified as Category X, no test
required
Fluids Susceptibility
11.0
Equipment identified as Category X, no test
required
