Item code: 210880178 € 75.90 SIRIO SD 78 Qty.

Low VHF Base station antennas

Features:
• Low VHF Base station antennas
• Directional, low-gain
• Vertical or Horizontal polarization
• Made of aluminium alloy 6063 T-832
P/N 2108801/78 SD 78

Electrical Data
• Type: Dipole antenna
• Frequency range:
SD 78: 78-88 MHz
• Impedance: 50Ω unbalanced
• Radiation (H-plane): beamwidth at -3 dB = 240*° @ center freq.
• Radiation (E-plane): beamwidth at -3 dB = 80*° @ center freq.
• Front to back ratio: ≥ 4* dB
• Polarization: Linear vertical or horizontal
• Gain: 4* dBi
• SWR in bandwidth: ≤ 1.5
• Max. power: 350 Watts (CW) at 30° C
• Feed system / position: Gamma match / center
• Connector: UHF-female with rubber protection cap

Mechanical Data
• Materials: Aluminium, die-cast zamak, EPDM rubber, zinc plated steel, chromed brass
• Wind load:
SD 78: 108 N @ 150 Km/h
• Wind resistance: 160 Km/h
• Wind surface:
SD 78: 0.084 m²
• Dimensions (approx.):
SD 78: 1065x1675 mm
• Boom/elements diameter: 33mm/16mm
• Turning radius (approx.):
SD 78: 1065* mm
• Weight (approx.):
SD 78: 1980 gr
• Operating temperature: -40° C to +80° C
• Mounting mast: Ø 35-52 mm