CI 121
CI 121
Designed for single engine piston aircraft, the CI 121 VHF Communication antenna is suitable for various applications. It is recommended to consult with an FBO or installation shop for optimal application information.
The antenna operates within the 118-137 MHz frequency range.
The CI 121 is a popular VHF communication antenna, similar to the CI 109 but with a smaller diameter whip and lighter weight at 0.5 pounds. It features a tapered glass laminate housing and a die-cast aluminum base, offering standard mounting and appearance compatible with many Cessna communication antennas. The antenna has been upgraded to meet the new RTCA DO-160D environmental requirements and supports the 118 to 137 MHz frequency range associated with DO-186 MOPS.
- Electrical: Frequency: 118-137 MHz, VSWR: 2.5:1 Maximum, Polarization: Vertical, Radiation Pattern: Omnidirectional, Impedance: RF 50 Ohms, Power: RF 50 Watts
- Mechanical: 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 Celsius, Altitude: 50,000 ft.
- Federal Specifications: FAA TSO C37d, C38d, RTCA Environmental DO-160D
For installation, it is crucial to use factory-supplied drawings and specifications, and refer to FAA AC 43.13-2B for guidelines. Orders can be placed via phone at 714-870-2420, fax at 714-870-6294, or email at [email protected].
Catalog excerpts
The most important thing we build is trust 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 whips 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. Single engine piston aircraft for applications of this antenna design. Consult your FBO or installation shop for best application information. Specifications Electrical Frequency Radiation Pattern 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. Frequencies Covered Mechanical Weight Cast Housing / Fiberglass whip Polyurethane Enamel Environmental Temperature RTCA Environmental WARNING: Use factory supplied drawings and specifications for installation. Refer to FAA AC 43.13-2B for installation guidelines. Cork Neoprene Order at: Tel: 714-870-2420 Fax: 714-870-6294 Email: [email protected]
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