GIA 63 Installation Manual 190-00303-05Page 2-12 Rev. Y2.6 GIA 63 Minimum Installation RequirementsBelow is a list of required devices for TSO-C129a category A1 certification.Pressure Altitude DeviceThis device delivers pressure altitude data to the GIA 63. This data comes from the Garmin GDC 74A AirData Computer.Manual Course DeviceThis device delivers the manual course select to the GIA 63, which is required for the VOR receiver, andoptional for the GPS receiver. Course information can come from an analog resolver, or from the GDUPFD/MFD via Ethernet HSDB.HSI/CDI Indicator or GDUThis device displays Nav Flag, Left/Right, To/From, Glideslope Flag, and Up/Down.Qualified GPS AntennaThis antenna must meet the following requirements:1. DO-160C Environmental ConditionsThe antenna shall meet the environmental conditions listed below and shall conform to the testrequirements of RTCA DO-160C.Environmental Condition Category DescriptionTemperature (operating) F2 -55 to +70°C(ground survival) F2 -55 to +85°CAltitude F2 55,000 feetTemperature Variation A 10o C per minuteHumidity C 95% at +55°CVibration CLMYTurbo/Reciprocating/HelicopterWaterproofness S ContinuousStreamFluids F Deicing FluidLightning 2A Direct EffectsIcing C 0.15” thick