Sirio CX-440 3/4 Wave J-Pole Antenna


3/4 λ UHF antenna for base station service made of high-quality materials to get the maximum efficiency and the best performance.


Sirio CX-440 3/4 Wave J-Pole Antenna

It is completely manufactured with aluminium tubes and nylon for its great robustness and it is supplied with a solid steel bracket for an easy and safe installation everywhere.

Its Gamma Match feed makes it earthed for perfect protection against discharges. In the mentioned range of frequencies, no adjustments are required. Simple and strong it is particularly recommended for professional use.

Packing includes an antenna, mounting materials, and a user manual.



  • Base station antenna, Mono-band
  • Low-gain, Omnidirectional
  • Protection from static discharges DC-Ground
  • Made of aluminium alloy 6063 T-832


Type 3/4 λ coaxial J-pole
Frequency Range SWR ≤ 1.5 440 – 455 MHz
Impedance 50 Ω
Unbalanced Radiation (H-plane) 360° C
Omnidirectional Radiation (E-plane) Beamwidth at -3 dB = 60°C
Polarization Vertical
Gain 2 dBd – 4.15 dBi
Max. Power 200 Watts
Connector N-Female
Wind Load 25 N
Resistance 150 km/h / 180 km/h
Height 625 mm
Weight 450 g
Mounting Mast 35 – 42 mm


Additional information

Weight 5 kg