B Grade Sirio SY68-3 - New High Gain 3 Element 4m (70MHz) Yagi Beam Antenna

Top quality construction is a major feature of this 4 metre beam antenna. With the increase in activity on 4m, this 3 element directional beam  will give you the edge, and you will be amazed at the contacts that can be made on this very interesting and friendly band

Key Features/Specifications:

• Sirio SY68-3
• 70Mhz (4 metre) Beam Antenna
• Type - Directional, High-gain
• Vertical or Horizontal polarization
• Made of aluminium alloy 6063 T-832

Electrical Data

• Type: 3 element Yagi antenna
• Frequency range @ SWR  1.5:  68-78 Mhz
• Impedance: 50 Ohms
• 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
• Wind resistance: 120 Km/h
• Dimensions (L x W approx.):
• SY 68-3: 1600x2235 mm
• Boom/elements diameter: 33mm/16mm
• Turning radius (approx.):
• SY 68-3: 1875 mm
• Weight (approx.): 3360 gr
• Operating temperature: -40° C to +80° C
• Mounting mast: Ø 35-52 mm