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Sirio SDB 270 2m/70cm Dual band Mobile Antennas

Dual Band mobile antenna conceived to cover the radio-amateur band of 2m 70cm, without tuning adjustments. It has been made of high quality materials to get the best efficiency. The whip is of black chromed stainless steel and all its metallic components are of brass to guarantee the maximum strength. It is supplied with "SL-S" mount.


  • Mobile antenna, Dual-band
  • Omnidirectional, Unity-gain
  • 17/7 PH stainless steel spring whip
  • 90° inclination and adjustable whip, detachable for car-washes access

    Electrical Data

  • Type: Type: VHF 1/4 λ, UHF 3/4 λ
  • Frequency range @ SWR ≤2: SDB 270: VHF 137-154 MHz, UHF 418-458 MHz
  • Impedance: 50Ω
  • Radiation (H-plane): 360° omnidirectional
  • Polarization: linear vertical
  • Gain: 0 dB ref. to a λ /4 whip
  • Max Power (CW) @ 30°C: 100 Watts
  • Standard mount: "SL-S"
  • Cable Type / Length: 5 m / RG 58

    Mechanical Data

  • Materials: Stainless Steel 17/7 PH, Chromed Brass
  • Height (approx.): SDB 270: 535 mm
  • Weight (approx.): SDB 270: 360 gr
  • Mounting Hole: Ø 19 mm
  • Quantity: Reviews
    Specials (26)
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