DM N4-15

The DM N4-15 and DM N4-33 Antennas are designed for use on high-performance aircraft where aerodynamic drag and component weight must be held at a minimum. These systems provide increased range and reduced bearing error, versus dipole type installations. Rugged metal edges provide erosion resistance; flush glass fiber housings ensure smooth airflow and reduced drag; and each assembly is foam-filled for maximum reliability.

The DM N4-15 is intended, primarily, for new aircraft installations, but can be installed, as a retrofit, when dual-antenna capability is required.

The DM N4-33 is intended for retrofit, or antenna modifications, on existing aircraft and is designed for ease of installation. Dual-antenna capability can be obtained by using a DM Hybrid Coupler (H21 series).

Electrical
Frequenc y Range	108 - 118 MHz
VSWR	5:1 max
Polarization	Horizontal
Radiation Pattern	Omnidirectional in the azimuth plane. Approx cos. 0 in the vertical plane.
Impedance	50 Ohms
Connectors	TNC
Mechanical
Weight	5.5 lbs (DM N4-15) 5.2 lbs (DM N4-33)
FAA	TSO-C40a

Product Reviews