Comant CI 121 VHF Communication

Our most popular VHF, the CI 121 is similar to our CI 109, only the CI 121 has a smaller diameter whip and is 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-186 MOPS.

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.

Applications

Single engine piston aircraft for applications of this antenna design. Consult your FBO or installation shop for best application information.

Frequencies Covered 118-137 MHz

• Frequency: 118-137
• 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 / Fiberglass whip
• Finish: Polyurethane Enamel
• Connector: BNC (female)
• Temperature: -55 to +85 Celcius
• Altitude: 50,000 ft.
• Airspeed: 250 KTAS
• FAA TSO: C37d, C38d
• RTCA Environmental: DO-160D
• Gasket: B12607-3 Cork Neoprene