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.
Frequencies Covered
- 118-137 MHz
Electrical
- 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)
Environmental
- Temperature: -55 to +85 Celcius
- Altitude: 50,000 ft.
- Airspeed: 250 KTAS
Federal Specifications
- FAA TSO C37d, C38d
- RTCA Environmental DO-160D
Gasket
- B12607-3 Cork Neoprene
