Maritime UHF Antenna

225-400 MHz – MADP225X2 (1Y42350)

The MADP225X2 antenna was designed for today’s latest UHF communications platforms for maritime, military, commercial, public safety and law enforcement applications.

The antenna has a state-of-the-art radiating elements that provide maximum reliability and maximum perfor- mance. The antenna elements are sealed in a heavy duty fiberglass radome for mechanical stability and reliabil- ity in harsh environments.

Being ground independent, this antenna can be mounted on various maritime platforms (metal or non-metal)

with no degradation of performance.



  • Ground independent
  •  Single Input
  •  Built to MIL-STD-810

Electrical Specifications

 Frequency: 225-400MHz

Polarization: Vertical

Impedance: 50Ω Nominal

VSWR: 2.5:1 Typical (3.0:1 Max)

Gain: ≥3 dBi Typical (2.5 dBi Band Edges)

Pattern: Omni Directional

                Azimuth 360°                        

                Elevation 52°

Power: 50Watts

Connector: Type N Female


Mechanical Specifications

 Design: Dipole

Height: 51 in. (1.3m) w/o extension

Diameter: 3in.

Radome: Fiberglass

Weight: 6.25 lbs. (2.84 kg.)

Wind load: 150MPH Max (241kph)

Mounting: 1” 14 Thread extension

Color: White/Black/Green/Tan/Grey