Sirio SM 48/140 / SMA 47/135 VHF Dual Band Mobile Antenna



  • Model: sm48140
  • Shipping Weight: 1.6lbs
  • 50 Units in Stock
  • Manufactured by: Sirio Antenna

Dual band VHF vehicular antennas working on 6m band and 2m band by means of the attached cutting diagram. SM is made of tapered black fiberglass whip while SMA is made of tapered 17/7 PH stainless steel of very high flexibility. Both models are supplied with a strong stainless steel spring. Available with "S" or "SL" mount on request.


Features:

  • Up-Grade: frequency extended
  • Mobile antenna, Dual-band
  • Omnidirectional
  • 6m band Unity-gain, 2m band Low-gain
  • SM 48/140: Black fiberglass conic whip
    SMA 47/135: 17/7 PH tapered stainless steel whip
  • 180° inclination and adjustable whip, detachable for car-washes access
  • Black chrome version available
  • Wide range of optional mounting bases available
  • Magnetic mount version available

    Electrical Data

  • Type:
    1/4 λ for 46.5...61.5 MHz band
    5/8 λ for 135...175 MHz band
  • Frequency range:
    SM 48/140: tunable 47.5...60.5MHz & 140...175 MHz
    SMA 47/135: tunable 46.5...61.5MHz & 135...175 MHz
  • Impedance: 50Ω
  • Radiation (H-plane): 360° omnidirectional
  • Polarization: linear vertical
  • Gain:
    0 dB ref. to a λ /4 whip for 46.5...61.5 MHz band
    2 dB ref. to a λ /4 whip for 135...175 MHz band
  • Bandwidth @ SWR ≤ 1.5:
    SM 48/140: ≥ 2 MHz @ 47.5 MHz,≥ 2.5 MHz @ 140 MHz
    SMA 47/135: ≥ 2.5 MHz @ 46.5 MHz,≥ 3.4 MHz @ 135 MHz
  • SWR @ res. freq.: ≤ 1.3 both bands
  • Max Power (CW) @ 30°C: 100 Watts
  • Standard Mount: "S"
  • Cable Length / Type: 5 m / RG 58

    Mechanical Data

  • Materials:
    SM 48/140: Fiberglass, Stainless Steel, Nylon
    SMA 47/135: Stainless Steel 17/7 PH, Chromed Brass, Nylon
  • Height (approx.):
    SM 48/140: 1340 mm
    SMA 47/135: 1505 mm
  • Weight (approx.): 550 gr
  • Mounting Hole: Ø 19 mm



  • This product was added to our catalog on Sunday 05 January, 2014.

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