SY 78-3 directional base antenna Sirio

Features:
- Low VHF Base station antennas
- Directional, High-gain
- Vertical or Horizontal polarization
- Made of aluminium alloy 6063 T-832

Part Numbers:
P/N 2105101/68 SY 68-3
P/N 2105101/78 SY 78-3

  Electrical Data
- Type: 3 element Yagi antenna
- Frequency range @ SWR ≤ 1.5:
  SY 68-3: 68-78 MHz
  SY 78-3: 78-88 MHz
- Impedance: 50Ω
- Radiation (H-plane): beamwidth @ -3 dB = 130° @ center freq.
- Radiation (E-plane): beamwidth @ -3 dB = 70° @ center freq.
- Front to back ratio: ≥ 15 dB
- Polarization: Linear vertical or horizontal
- Gain: 4.85 dBd - 7 dBi
- Max. power: 350 Watts
- Grounding protection: All metal parts are DC-grounded, the inner conductor is coupled capacitively
- Connector: UHF-female with rubber protection cap

    Mechanical Data
- Materials: Aluminium, die-cast zamak, EPDM rubber, zinc plated steel, chromed brass
- Wind load:
  SY 68-3: 203 N @ 150 Km/h
  SY 78-3: 190 N @ 150 Km/h
- Wind resistance: 120 Km/h
- Wind surface:
  SY 68-3: 0.166 m²
  SY 78-3: 0.154 m²
- Dimensions (L x W approx.):
  SY 68-3: 1600x2235 mm
  SY 78-3: 1600x1955 mm
- Boom/elements diameter: 33mm/16mm
- Turning radius (approx.):
  SY 68-3: 1875 mm
  SY 78-3: 1815 mm
- Weight (approx.):
  SY 68-3: 3360 gr
  SY 78-3: 3270 gr
- Operating temperature: -40° C to +80° C
- Mounting mast: Ø 35-52 mm