Sirio CX4-68 VHF Base Antenna 68-73 MHz

Sirio CX4-68 VHF Base Antenna 68-73 MHz.  Good pre-owned condition. Comes apart in two pieces.   End of mast is extendable for tuning.   No shipping on this, local pickup only.  

Info from the manufacturer's website:

• 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 2104301.00 CX 4-68 Electrical Data

• Type: 3/4λ coaxial J-pole

• Frequency range: CX 4-68: 68...73 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 4-68: ≥ 1.7 MHz @ 68 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