Comant CI-401-220

Overview

Completely redesigned 401 Series ARINC footprints GPS. This model contains an all-new, highly stable amplifier that offers great performance. Gain performance at 26.5 to 31.5 dB provides excellent Satcom rejection at 40 dB minimum. Plus, this antenna presents very low noise levels at 3.8 dB maximum.

The new design features a nickel plated aluminum base plate with an integral 'O' ring for sealing.

What's more, the built-in voltage regulator allows the antenna to operate smoothly anywhere from 4 to 24VDC, affording a wide variety of applications such as Honeywell, Bendix-King, L3 Avionics, Universal Avionics and UPS Navigation systems.

Passive Antenna Specifications

• Characteristics: (TA = -55° C to +70° C)
• Frequency: 1575.42 ± 3 MHz
• Polarization: RHCP
• Axial Ration: 3.0 dB on bore. @ (zen.) maximum

Radiation Gain Pattern

• +1.0 dBic: 0 ± D < 75°
• -2.5 dBic: 75° < D < 80°
• -4.5 dBic: 80° < D < 80°
• -7.5 dBic: D = 90° (Horizon)
• -5.0 dBic: Nominal @ D = 0° (zen.)
• Azimith Gain Variation: < 3.0 dB @ > 5° (zen.)

Preamplifier

• Characteristics: (TA = -55° C to +70° C)
• Frequency: 1575.42± 3 MHz
• Output Impedance: 50 OHMS (nominal)
• Output VSWR: 1.7:1 maximum (RL -11.73 dB)
• Gain @ 1575.42 MHz: 26.5 dB minimum/31.5 dB maximum
• Noise Figure: 3.8 dB maximum
• Selectivity: -40 dB minimum Satcom (1626.5 MHz)
• DC Voltage: 4 to 24VDC
• DC Current: 25 µa minimum/40 µa maximum
• Burnout Protection: 30 dBm/1.0 CW unmodulated

Mechanical/Environment

• Weight: 6.2 oz. maximum
• Connector: TNC female
• Air Speed: 600 Knots @ 55,000'
• Environmental Category [F2X]ACB[S(L)T(C,C1,R)]