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The CI 420-221 provides GPS for 17dB Garmin™ systems in the popular "teardrop" shape. Patented design offers GPS performance for Garmin™ 430, 530 and G1000 systems with 17dB gain requirement.
All-new construction and design offers the latest in GPS antenna and amplifier technology. This antenna has been tested under the most rigorous conditions as outlined by RTCA DO-160D.
Matches footprint of Garmin™ s GA56 and Comant?s CI 405 Series, which this design replaces.
font color="#FFFFFF" face="Verdana" size="2">MODEL CI 420-221 ComDat GPS | |
PS Passive Characteristics | |
Frequency | 1575.42 MHz |
VSWR | 1.5:1 Maximum |
Polarization | RHCP |
Radiation Pattern | Hemispherical |
Impedance | 50 Ohms Output (Nominal) |
Gain @ 1575.42 MHz | 17.5 +/- 3dB Maximum |
DC Voltage | 4 to 24 VDC |
DC Current | 20mA Maximum |
Noise Figure | 3.8dB Maximum |
Selectivity | -35dB Minimum SATCOM 1626.5 |
Burnout Protection | 30dBm / 1.0 CW Unmodulated |
echanical / Environmental | |
Speed / Altitude | 330 KIAS Maximum @ Sea Level |
Weight | 4.2 Oz. Maximum |
RTCA Environmental | DO-160D |
Environmental Cat. | F2XACBS(L)U(F,F1)T(C,C1,R)XRF DXSXXXXXXXXXXXX1BCA |
FAA TSO | C144 |
RTCA MOPS | DO-228 |
ORDER OPTIONSnbsp; | |
onnector | |
GPS Port | TNC |
olor | |
Color | White |

Approvals and Conformities
Product Attributes

The CI 420-221 provides GPS for 17dB Garmin™ systems in the popular "teardrop" shape. Patented design offers GPS performance for Garmin™ 430, 530 and G1000 systems with 17dB gain requirement.
All-new construction and design offers the latest in GPS antenna and amplifier technology. This antenna has been tested under the most rigorous conditions as outlined by RTCA DO-160D.
Matches footprint of Garmin™ s GA56 and Comant?s CI 405 Series, which this design replaces.
font color="#FFFFFF" face="Verdana" size="2">MODEL CI 420-221 ComDat GPS | |
PS Passive Characteristics | |
Frequency | 1575.42 MHz |
VSWR | 1.5:1 Maximum |
Polarization | RHCP |
Radiation Pattern | Hemispherical |
Impedance | 50 Ohms Output (Nominal) |
Gain @ 1575.42 MHz | 17.5 +/- 3dB Maximum |
DC Voltage | 4 to 24 VDC |
DC Current | 20mA Maximum |
Noise Figure | 3.8dB Maximum |
Selectivity | -35dB Minimum SATCOM 1626.5 |
Burnout Protection | 30dBm / 1.0 CW Unmodulated |
echanical / Environmental | |
Speed / Altitude | 330 KIAS Maximum @ Sea Level |
Weight | 4.2 Oz. Maximum |
RTCA Environmental | DO-160D |
Environmental Cat. | F2XACBS(L)U(F,F1)T(C,C1,R)XRF DXSXXXXXXXXXXXX1BCA |
FAA TSO | C144 |
RTCA MOPS | DO-228 |
ORDER OPTIONSnbsp; | |
onnector | |
GPS Port | TNC |
olor | |
Color | White |