The CI 139 antenna is a four-internal-hole-mount style VHF communication blade antenna with a BNC port. This antenna is equivalent to the CI 119 VHF communications blade antenna except for the BNC connector located at the centerline of the antenna. It is suitable for either top or bottom mounting with both light and heavy fixed-wing single-engine and multi-engine aircraft and helicopters.
- 118-137 MHz frequencies
- Vertical polarization
- Omnidirectional radiation pattern
- Valox 420 housing
- Polyurethane enamel finish
- BNC female connector
- Weight: 1.25 lb
- Height: 13.00 in
- Frequency: 118–137 MHz
- VSWR: 2.9:1
- Polarization: Vertical
- Radiation Pattern: Omnidirectional
- Impedance (RF): 50 Ω
- Power (RF): 25 W
- Finish: Glossy White
- Connector: BNC Female
- Temperature Range: -55ºC to +85ºC
- Altitude: 50,000 ft
- FAA TSO: C37d, C38d
- RTCA Environmental: DO-160D
- Gasket: C13904 Cork Neoprene
