Air Band Antenna Sirio MD118-137

| septiembre 19, 2017

Air Band Antenna Sirio MD118-137

Sirio MD 118-137

Dipole 1/2 λ with loaded radial covering the frequency range of 118-137 MHz for aeronautical band. The whip is made of black chromed stainless steel and all the metallic components are of brass or steel to get the best robustness. Thanks to its loaded radial MD 118-137 Aviation doesn’t need any metallic ground plane and it is particularly recommended for installation on small aircraft.



  • Suitable for aeronautical service, Omnidirectional
  • Mono-band, Unity-gain
  • Recommended for installation on small aircraft
  • Flexible stainless steel radial



Electrical Data

  • Type: Dipole 1/2 λ with loaded radial
  • Frequency range: 118-137 MHz for areonautical bandAir Band Antenna Sirio MD118-137
  • Impedance: 50Ω
  • Radiation (H-plane): 360° omnidirectional
  • Polarization: linear vertical
  • Gain: 0 dBd – 2.15 dBi
  • Max. Power (CW) @ 30°C: 50 Watts
  • Cable Lenght / Type: 5m / RG 58
  • Cable connector: FME-female, other type on request

Mechanical Data

  • Materials: Stainless Steel 17/7 PH, Nylon, Chromed Brass, Zamac
  • Wind resistance: 220 Km/h
  • Height (approx.): 760 mm
  • Weight (approx.): 330 gr
  • Mounting Hole: Ø 14 mm


Install your MD1 18-138 as far as possible from your body. Drill a 0 14mm hole on a metal plate of max 1,5mm thikness and clean the painted surface to obtain the best ground contact. Fix the antenna base and the radiator being sure to well lock all the parts.

Remarks: The cable must not interfear or disturb the pilot movement. Be sure to well fix the cable from the transceiver to the antenna. Do not use an Input power higher than the allowed one. Occasionlly don’t forget to check the well-done locking of all fixed parts.

Air Band Antenna Sirio MD118-137

Price: $64.00

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