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Sirio SB 3U Marine VHF Marine Antenna (156-163mhz)

$62.00

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  • Model: sb3usb3s
  • Shipping Weight: 2lbs
  • 5 Units in Stock
  • Manufactured by: Sirio Antenna

3/4 λ marine antenna working on 156-163 MHz without Ground Plane. It is particularly protected against the worst sea climates. The conic glass fibre tube makes it strong so to get a full assurance. The radial whip is earthed in order to avoid stray R.F. currents and their discharges. It is supplied with a stainless steel bracket for an easy fitting on the top of the mast. In the mentioned range of frequencies adjustments are not required.


Features:

  • Marine antenna, Mono-band
  • Low-gain, Omnidirectional
  • Designed to work without Ground Plane
  • Protection from static discharges DC-Ground
  • Perfect protection against the worst weather conditions
  • Provided with stainless steel bracket for an easy installation on mast top
  • Stainless steel hardware
  • High quality whip made of brass and copper protected by fiberglass tube
  • SB 3 S Supplied with white coaxial cable RG-58 C/U directly connected

    Electrical Data

  • Type: 3/4 λ J-pole
  • Frequency range @ SWR ≤2:
    SB 3 U: 155.8 - 160.1 MHz
    SB 3 S/...: 155.5 - 160.5 MHz
  • Impedance: 50Ω
  • Radiation (H-plane): 360° omnidirectional
  • Radiation (E-plane): beamwidth @ -3 dB = 39°
  • Radiation angle deg.: 21°
  • Polarization: linear vertical
  • Gain: 2 dBd - 4.15 dBi
  • Max. Power (CW) @ 30°C: 100 Watts
  • Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
  • Cable length / Type:
    SB 3 U: not supplied
    SB 3 S/...: 5, 18 or 25 m / white RG 58
  • Connector:
    SB 3 U: UHF-female
    SB 3 S/...: not supplied

    Mechanical Data

  • Materials: Fiberglass, Nylon, Chromed brass
  • Height (approx.): 1465 mm
  • Weight (approx.):
    SB 3 U: 300 gr
    SB 3 S/5: 485 gr



  • This product was added to our catalog on Saturday 04 January, 2014.

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