SIRIO CX-4-78 BASE ANTENNA (78-83MHZ)

The Sirio CX-4-78 is a 4m band base antenna, this one is designed to work between 78 and 83MHz. Features: - Base station antenna, Mono-band - Low-gain, Omnidirectional - Protection from static discharges DC-Ground - Made of aluminium alloy 6063 T-832.

Electrical Data:

• Type: 3/4λ coaxial J-pole
• Frequency range: tunable 78...83 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 60°
• Radiation angle: 3°
• Polarization: linear vertical
• Gain: 2dBd - 4.15 dBi
• Bandwidth @ SWR ≤1.5: ≥ 2.5 MHz @ 78 MHz
• SWR. @ res. freq.: ≤ 1.2
• Max. Power (CW) @ 30°C: 500 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: UHF-female

Mechanical Data:

- Materials: Aluminium, Brass, Stainless Steel, Nylon
- Wind load / resistance: 97 N @ 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