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CI 401-220 COMDAT™ GPS
Frequency 1575.42 MHz ±3 Mhz
(DAI Part# CI401-220)
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.
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SPECIFICATIONS
Passive Antenna
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 ± Ø < 75°
-2.5 dBic 75° ≤ Ø < 80°
-4.5 dBic 80° ≤ Ø < 80°
-7.5 dBic Ø = 90° (Horizon)
-5.0 dBic Nominal @ Ø = 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'
Federal Specifications
Environmental Category [F2X]ACB[S(L)T(C,C1,R)]
XRFDXSXXXXX[XX]X[XXXX][1B]CX
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