Antenna - Garmin MX20 Installation Manual

Specifications
Table 3-5 - MX20 I/O Connector Pin Out (J2) (Cont'd)
Some features listed are not supported at this time
Pin Name
50 DISCRETE_IN_1
51 +28V
52 429_OUT_1A
53 429_OUT_1B
54 561_CLK_IN_B
55 561_CLK_IN_A
56 561_SYNC_IN_B
57 561_SYNC_IN_A
58 429_IN_0B
59 429_IN_0A
60 429_IN_3B
61 429_IN_1A
62 429_IN_1B
3.3 Antenna Requirements
3.3.1 A-33 Antenna
Early production runs of PN 590-1104 were marked with TSO-C129a. This antenna was re-qualified to
TSO-C144 with no changes to the antenna. P/N 590-1104 antennas marked with TSO-C129a identification
are identical to those marked with TSO-C144.
Frequency:...................................................... 1575 MHz
Polarization: ................................................... Right Hand Circular
Axial Ratio: .................................................... 3 dB Max at bore site
Radiation Coverage:....................................... Elevation Angle
Finish:............................................................. Polyurethane Enamel
Weight: .......................................................... 3.9 oz. (0.11 kg)
Height: ........................................................... 0.61 inches (1.55 cm)
Operating Temperature: ................................ -55°C to +85°C
Operating Altitude: ....................................... 55,000 feet (16,764m) max.
54
I/O
I
I
O ARINC 429 Output port 1A
O ARINC 429 Output port 1B
I Reserved
I
I
I
I ARINC 429 Input port 0B
I ARINC 429 Input port 0A
I Reserved
I ARINC 429 Input port 1A
I ARINC 429 Input port 1B
View from rear of unit
>15º
10º
5º
0º
560-1025-09 Rev E
Description
Minimum Gain
-2.0 dBic
-3.0 dBic
-4.5 dBic
-7.5 dBic
MX20 Installation Manual