Garmin Apollo CNX80, Installation Manual

Page: 23 / 168

General Information
Apollo CNX80 Installation Manual 560-0982-00 Rev D
1-13
1.3.10.1.2 A-34 (590-1112)
Early production runs of PN 590-1112 were marked with TSO-C129a. This antenna was re-qualified to
TSO-C144 with no changes to the antenna. P/N 590-1112 antennas marked with TSO-C129a identification
are identical to those marked with TSO-C144.
Applicable TSO:.......................................................TSO-C144 (RTCA/DO-228 with Change No. 1)
Frequency: ...................................................1575 MHz
Polarization:.................................................Right Hand Circular
Axial Ratio: .................................................3 dB Max at bore site
Radiation Coverage: .....................................Elevation Angle
Minimum Gain
>15º -2.0 dBic
10º -3.0 dBic
5º -4.5 dBic
0º -7.5 dBic
Finish:..........................................................Polyurethane Enamel
Weight: .......................................................7.0 oz. (0.2 kg)
Height: ........................................................0.66 inches (1.76 cm)
Operating Temperature: ...............................-55°C to +85°C
Operating Altitude: ......................................55,000 feet (16,764m) max.
Amplifier:
Gain...................................................... 26.5 dB ±2 dB
Noise Figure:......................................... 2.5 dB Max
Impedance: ............................................ 50 ohms
VSWR (Dry):........................................ < 1.5:1
VSWR (Rain):....................................... < 2.0:1
Band Rejection: ..................................... 35 dB
Power Handling:.................................... 1 Watt
Voltage:................................................. 5 VDC ±10%
Current:................................................. 35 mA nominal, 40 mA max.
L1 Filter Bandwidth............................... 1575 ±20 MHz (3 dB)
+110, -210 MHz (60dB)
Group Delay (3dB bandwidth) ............... 27 ±10 nanosecond
Pass Band Ripple (3dB bandwidth) …….0.2 dB max