Garmin Apollo CNX80 Installation Manual

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General Information1-12 560-0982-00 Rev D Apollo CNX80 Installation Manual1.3.10 ANTENNA R EQUIREMENTS1.3.10.1 GPS Antennas1.3.10.1.1 A-33 (590-1104)Early production runs of PN 590-1104 were marked with TSO-C129a. This antenna was re-qualified toTSO-C144 with no changes to the antenna. P/N 590-1104 antennas marked with TSO-C129a identificationare identical to those marked with TSO-C144.Applicable TSO:.......................................................TSO-C144 (RTCA/DO-228 with Change No. 1)Frequency: ...................................................1575 MHzPolarization:.................................................Right Hand CircularAxial Ratio: .................................................3 dB Max at bore siteRadiation Coverage: .....................................Elevation Angle Minimum Gain>15º -2.0 dBic10º -3.0 dBic5º -4.5 dBic0º -7.5 dBicFinish:..........................................................Polyurethane EnamelWeight: .......................................................3.9 oz. (0.11 kg)Height: ........................................................0.61 inches (1.55 cm)Operating Temperature: ...............................-55°C to +85°COperating Altitude: ......................................55,000 feet (16,764m) max.Amplifier:Gain...................................................... 26.5 dB ±2 dBNoise Figure:......................................... 2.5 dB MaxImpedance: ............................................ 50 ohmsVSWR (Dry):........................................ < 1.5:1VSWR (Rain):....................................... < 2.0:1Band Rejection: ..................................... 35 dBPower Handling:.................................... 1 WattVoltage:................................................. 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 nanosecondPass Band Ripple (3dB bandwidth) …….0.2 dB max