GIA 63/GIA 63W Installation Manual Page 2-11
190-00303-05 Revision S
2.6 GIA 63 Minimum Installation Requirements
Below is a list of required devices for TSO-C129a category A1 certification.
Pressure Altitude Device
This device delivers pressure altitude data to the GIA 63. This data comes from the Garmin GDC 74A
Air Data Computer.
Manual Course Device
This device delivers the manual course select to the GIA 63, which is required for the VOR receiver, and
optional for the GPS receiver. Course information can come from an analog resolver, or from the
GDU PFD/MFD via Ethernet HSDB.
HSI/CDI Indicator or GDU
This device displays Nav Flag, Left/Right, To/From, Glideslope Flag, and Up/Down.
Qualified GPS Antenna
This antenna must meet the following requirements:
1. DO-160C Environmental Conditions
The antenna shall meet the environmental conditions listed below and shall conform to the test
requirements of RTCA DO-160C.
Environmental Condition Category Description
Temperature (operating) F2 -55 to +70
o
C
(ground survival) F2 -55 to +85
o
C
Altitude F2 55,000 feet
Temperature Variation A 10
o
C per minute
Humidity C 95% at +55
o
C
Vibration CLMY Turbo/Reciprocating/Helicopter
Waterproofness S Continuous Stream
Fluids F Deicing Fluid
Lightning 2A Direct Effects
Icing C 0.15” thick
2. Electrical Characteristics
LNA Supply voltage 4.5 ± 0.5 V
DC
LNA Supply Current 20 mA Maximum
LNA Operating Frequency 1575.42 ± 2.00 MHz
LNA Gain 20 dB Maximum, 12dB Minimum
LNA Noise Figure 3.0 dB Maximum
LNA Output VSWR (50 Ω) 2:1 Maximum
LNA Input power at -1 dB Gain Compression -6 dB Minimum
LNA Bandwidth
(-3 dB) 40 MHz Maximum
(-20 dB) 100 MHz Maximum
(-40 dB) 250 MHz Maximum
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