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VHF / Fiberglass Whip

CI-121 VHF Cessna Single Engine Rod Antenna 


Frequency · 118-137 MHz 
Similar to the CI-109, the CI-121 is smaller in diameter and lighter at only 0.5 pounds.
Features a tapered glass laminate housing and die-cast aluminum base.
Offers standard mounting and appearance to many Cessna communication antennas.
The CI-121 has been re-tested and upgraded to the new RTCA DO-160D environmental requirements and offers the 118 to 137 MHz frequency associated with DO-186A MOPS. 
 
Electrical  
Frequency                                   118 - 137 MHz 
VSWR                                           2.5:1 Maximum 
Polarization                                  Vertical 
Radiation Pattern                      Omnidirectional 
Impedance                                  50 Ohms 
Power                                           50 Watts 
Mechanical  
Weight                                         0.5 lb. Maximum 
Height                                         18.50 in. Maximum 
Material                                       Cast housing / Fiberglass whip 
Finish                                          White Polyurethane Enamel  
Connector                                  BNC (female)  
Gasket                                        C12607-3 Cork Neoprene 
Environmental  
Temperature -                           55°C to +85°C 
Altitude                                       50,000 ft. 
Air Speed                                   250 Knots TAS 
Federal Specifications  
RTCA Environmental              DO-160D 
Environmental Category        [D2X]ACB[R(C,C1)U(F,F1)]
                                                   XWFDXSXXXXX[XX]X[XXXX]XAX 
FAA TSO                                   C37d, C38d  
RTCA MOPS                            DO-186A 

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