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Sirio CX-4-83 4m Band Base Antenna

Sirio CX-4-83 4m Band Base Antenna

Ref:  32CX-4-83
Delivery:  Free Delivery in UK Mainland
Band:  4 Meters
Frequency RX:  83 - 88 MHz

Price:  £69.99




Sirio CX-4-83 | 83 - 88 MHz 4m Band Base Antenna Antenna

The Sirio CX-4-83 is a 4m mono-band base station antenna. It has low-gain and this omnidirectional aerial is tunable from 83-88 MHz. 3/4 λ VHF antenna for base station service made of high quality materials to get the best performance and the maximun efficiency. It is completely manufactured with aluminium tubes and nylon for its great robustness.

It is supplied with a solid steel bracket for an easy and safe installation. Its Gamma Match feed makes it earthed for a perfect protection against the static discharges. Simple and strong, it is particularly recommended for a professional use.


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Main Features

  • Base station antenna, Mono-band
  • Low-gain, Omnidirectional
  • Factory tunable according to specific customer's frequency
  • Protection from static discharges DC-Ground
  • Made of aluminium alloy 6063 T-832
  • UP-GRADE: working frequency extended
  • P/N 2104601.00 CX 4-83

Electrical Data

  • Type: 3/4λ coaxial J-pole
  • Frequency range:

CX 4-83: 83 - 88 MHz tunable by diagram

  • Impedance: 50Ω unbalanced
  • Radiation (H-plane): 360° omnidirectional
  • Radiation (E-plane): beamwidth at -3 dB = 60°
  • Radiation angle: 3°
  • Polarization: vertical
  • Gain: 2dBd - 4.15 dBi
  • Bandwidth @ SWR 1.5:

CX 4-83: ≥ 2.5 MHz @ 83 MHz

  • SWR. @ res. freq.: ≤ 1.2
  • Max. power: 500 Watts
  • Feed system / position: gamma match / base
  • Connection: UHF-female

Mechanical Data

  • Materials: Aluminium, Brass, Stainless Steel, Nylon
  • Wind load / resistance: 97 N at 150 Km/h / 150 Km/h
  • Wind surface: 0.08 m²
  • Height (approx.): from 2700 to 3360 mm
  • Weight (approx.): 1900 gr
  • Mounting mast: Ø 35-42 mm

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