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