VHF Communications Antenna, Frequency 118-137 MHz, Comant

VHF Communications Antenna - P/N CI-121, Comant

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.


Frequency 118-137 MHz
VSWR 2.5:1 Maximum
Polarization Vertical
Radiation Pattern Omnidirectional
Impedance RF 50 Ohms
Power RF 50 Watts
Weight 0.5 lbs Max.
Height 18.50 inches Max.
Material Cast Housing / Fibreglass whip
Finish Polyurethane Enamel
Connector BNC (female)
Temperature -55°C to +85°C
Altitude 50,000 ft.
Airspeed 250 KTAS
FAA TSO C37d, C38d
RTCA Environmental DO-160D