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This is the Sirio SY 27-4 27MHz 4 Element High-Gain Yagi Beam Antenna, the even bigger brother of the SY-3, and as per the other one, not for the faint hearted, those worried about nosy neighbours or the environmental visual impact of such a large antenna - serious DX'ers only need apply!
Features:
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CB Base station antennas
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Directional, High-gain
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Horizontal polarization
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Factory tuned at mid-band
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High power handling capability
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Elements equipped with waterproof jointing sleeve
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Made of aluminium alloy 6063 T-832 |
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| Electrical Data |
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Type:
SY 27-4: 4 element Yagi antenna |
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Frequency range:
SY 27-4: 26.9-27.5 MHz @ SWR ≤ 2 |
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Impedance: 50Ω unbalanced |
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Radiation (H-plane): directional |
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Polarization: horizontal |
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Gain:
SY 27-4: 11 dBd, 13.15 dBi |
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Bandwidth @ SWR ≤ 2:
SY 27-4: 600 KHz |
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SWR @ res. freq.: ≤ 1.2 |
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Max. power:
1000 Watts (CW) continuous
3000 Watts (CW) short time |
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Feed system / position: Gamma match / center |
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Connector: UHF-female |
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| Mechanical Data |
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Materials: Aluminium, Steel, Nylon |
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Wind load:
SY 27-4: 80 N at 150 Km/h |
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Wind resistance: 120 Km/h |
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Wind surface: 0.07 m² |
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Dimensions (approx.):
SY 27-4: 5725x4030x100 mm |
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Boom length / diameter:
SY 27-4: 4030 mm / 33 mm |
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Max. element length (approx.):
SY 27-4: 5725 mm |
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Turning radius (approx.):
SY 27-4: 3600 mm |
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Weight (approx.):
SY 27-4: 6100 gr |
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Mounting mast: Ø 35-50 mm |
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