Maritime VHF Antenna

136-174 MHz – MADP136-174 (1Y42550)


The MADP136-174 antenna was designed for today’s latest broadband VHF communications platforms for mari- time, military, commercial, public safety and law enforcement applications.

The radiator element is designed for maximum durability and performance. The antenna radiator is sealed in a heavy duty fiberglass radome for mechanical stability and reliability 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: 136-174MHz
  • Polarization: Vertical
  • Impedance: 50Ω Nominal
  • VSWR: 2:1 Typical (3.0:1 Max)
  • Gain: ≥ 2dBi
  • Pattern: Omni Directional
    • Azimuth 360°
    • Elevation 72°
  • Power: 50Watts
  • Connector: Type N Female

Mechanical Specifications

  • Design: Dipole
  • Height: 42.25 in. (1.02m) w/o extension
  • Diameter: 2.25 in. (57.15mm)
  • Radome: Fiberglass
  • Weight: 5.5lbs. (2.05kg.)
  • Wind load: 150MPH Max (241kph)
  • Mounting: 1” 14 Thread
  • Color: White/Black/Green/Tan/Grey