3/4 λ VHF antennas for base station service made of hi-quality materials to get the maximum efficiency and the best performance. 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 a perfect protection against the discharges. In the mentioned range of frequencies, no adjustments are required. Simple and strong it is particurly recommended for a professional use.
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: 440-455MHz No tuning required
Systems: 70cm-HAM
Impedance: 50Ω
Radiation (H-plane): 360° omnidirectional
Radiation (E-plane): beamwidth @ -3 dB = 60°
Radiation angle: 18°
Polarization: linear vertical
Gain: 0dBd – 2.15 dBii
Bandwidth @ SWR ≤2: see diagram
SWR @ res. freq.: see diagram
Max. Power (CW) @ 30°C: 250 Watts
Grounding protection: All metal part are DC-grounded, the inner conductor shows a DC-short
Connector: N-female
Mechanical Data
Materials: Aluminium, Brass, Steel, Nylon
Wind load / resistance: 25 N @ 150 Km/h / 180 Km/h
Wind surface: 0.02 m²
Height (approx.): 590 mm / 1.94 ft
Weight (approx.): 540 gr / 1.19 lb
Mounting mast: Ø 235-42 mm
This product was added to our catalog on Saturday 20 April, 2024.
