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Sirio Thunder 27 (25 - 29mhz) Groundless 10M-HAM Base Antenna
Sirio Thunder 27 (25 - 29mhz) Groundless 10M-HAM Base Antenna
Sirio Thunder 27 (25 - 29mhz) Groundless 10M-HAM Base Antenna

Sirio Thunder 27 (25 - 29mhz) Groundless 10M-HAM Base Antenna

Sirio Thunder 27 (25 - 29mhz) Groundless 10M-HAM Base Antenna

  • $49.00

  • Brand:
    Sirio
  • Product Code:
    SIR-CBBA-TH27
  • In Stock
  • Ex Tax: $49.00

Antenna Base CB 27 MHz 1/4 wave. Designed to pass unnoticed. Very discreet. It can be placed as a balcony. Also as a provisional base installation. It is composed of an elecoidal dipole encapsulated in a PVC tube in black and with UV protection.  Frequency range between 27 and 29 MHz. Bandwidth ,PL-Female connector.

 


Features:

  • Balcon or temporary installation antenna
  • Omnidirectional
  • Designed to work without Ground Plane
  • Factory tuned at mid-band

    Electrical Data

  • Type: 1/4 λ helical loaded dipole
  • Frequency range: 25-29 MHz
  • System: 10M-HAM
  • Impedance: 50Ω
  • Radiation (H-plane): 360° omnidirectional
  • Polarization: linear vertical
  • Gain: 0 dBd, 2.15 dBi
  • Bandwidth @ SWR ≤ 2: ≥ 5000 KHz
  • SWR @ res. freq.: ≤ 1.5
  • Max. power: 100 Watts (CW) continuous 300 Watts (CW) short time
  • Feed system / position: Direct / Base
  • Connector: UHF-female

    Mechanical Data

  • Materials: Aluminium, Steel, Nylon, Copper
  • Wind load / resistance: 36 N at 150 Km/h / 180 Km/h
  • Wind surface: 0.03 m²
  • Height (approx.): 960 mm
  • Weight (approx.): 700 gr
  • Mounting mast: Ø 25-32 mm
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    Tags: Groundless CB Antenna