| SIRIO GPF 21 N BASE |
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Features:
• Base station antenna, Mono-band
• Low-gain, Omnidirectional
• Suitable for land and marine service
• Tunable by whip cutting
• Protection from static discharges DC-Ground
• Stainless steel hardware and radials
• Equipped with anodized aluminium bracket for an easy side mast installation
• High quality whip made of brass and copper protected by fiberglass tube
P/N 2109720.00 GPF 21-N
Electrical Data
• Type: 5/8λ ground plane
• Frequency range: tunable from 135 to 175 MHz
• Impedance: 50Ω unbalanced
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth at -3 dB = 80°
• Radiation angle: 28°
• Polarization: vertical
• Gain: 1.5 dBd - 3.65 dBi
• Bandwidth at V.S.W.R. 2:1: 5.6 MHz at 135 MHz
• V.S.W.R. at res. freq.: ≤ 1.2:1 at 135 MHz
• Max. power: 200 Watts
• Feed system / position: transformer DC-ground/ base
• Connection: N-female gold plated
Mechanical Data
• Materials: Fibreglass,Aluminium, Brass, Stainless Steel
• Wind load / resistance: 55 N at 150 Km/h / 200 Km/h
• Wind surface: 0.05 m²
• Height (approx.): 1730 mm
• Weight (approx.): 1200 gr
• Radial length (approx.): 495 mm
• Mounting mast: Ø 35-54 mm
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