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Sirio Boomerang 27 W 10m & CB Base Antenna


Compact 27-28.5Mhz Fibreglass CB Radio Antenna

The Sirio Boomerang has been one of our top selling CB antennas for many years now. Easy to install, the performance is excellent for such a small aerial. It can be used just about anywhere; really handy when you don't have a lot of space to play with!

This antenna has been especially designed for places where conventional roof mounted antennae are not practical, the Boomerang antenna can be mounted at a right angle with its own bracket, making it possible to mount from a window ledge or balcony.

1/4 Wave Ground plane Boomerang antennas working on 27MHz and 10m HAM band. Particularly suitable for balcony installation where reduced dimensions are required. They are made of high quality materials and supplied with a very strong die-cast zamac mount.

Boomerang 27W whose whip is made of tapered glass fibre rod with inside helical winding to reduce the length and guaranteeing a good performance. Both models have a loaded glass fibre radial.


  • Balcon or temporary installation antenna
  • Mono-band
  • Omnidirectional
  • Factory tuned at mid-band
  • Tunable by whip length adjusting
  • BOOMERANG 27 W: tapered fiberglass whip and radial with inside helical winding

    Electrical Data

  • Type: 1/4 λ boomerang
  • Frequency range: 27-28.5 MHz
  • Impedance: 50Ω
  • Radiation (H-plane): 360 omnidirectional
  • Polarization: linear vertical
  • Gain: 0 dBd, 2.15 dBi
  • Bandwidth @ SWR ≤ 2:
  • BOOMERANG 27 W: ≥ 700 KHz
  • SWR @ res. freq.: ≤ 1.2
  • Max. power: BALCONY 27 W: 150 Watts (CW) continuous, 450 Watts (CW) short time
  • Feed system / Position: Direct / center
  • Connector: UHF-female

    Mechanical Data

  • Materials: Aluminium, Steel, Nylon, Fiberglass, Copper
  • Wind load: BOOMERANG 27 W: 23 N at 150 Km/h
  • Wind resistance: 140 Km/h
  • Wind surface: BOOMERANG 27 W: 0.02 m
  • Height (approx.): BOOMERANG 27 W: 2870 mm
  • Weight (approx.): BOOMERANG 27 W: 800 gr
  • Radial length (approx.): 1130 mm

  • Add to Cart:

    • Model: boomerang_27
    • Manufactured by: Sirio Antenna

    This product was added to our catalog on Friday 25 November, 2011.