Features:
• CB Base station antennas
• Directional, High-gain
• Horizontal polarization
• Factory tuned at mid-band
• High power handling capability
• Elements equipped whit waterproof jointing sleeve
• Made of aluminium alloy 6063 T-832
P/N 2105201.00 SY 27-4

Electrical Data
• Type:
SY 27-4: 4 element Yagi antenna
• Frequency range:
SY 27-4: 26.9-27.5 MHz @ SWR ≤ 2
• Impedance: 50Ω unbalanced
• Radiation (H-plane): directional
• Polarization: linear horizontal
• Gain:
SY 27-4: 11 dBd, 13.15 dBi
• Bandwidth @ SWR ≤ 2:
SY 27-4: ≥ 600 KHz (55 channel)
• SWR @ res. freq.: ≤ 1.2
• Max. power:
1000 Watts (CW) continuous
3000 Watts (CW) short time
• Feed system / position: Gamma match / center
• Connector: UHF-female

Mechanical Data
• Materials: Aluminium, Steel, Nylon
• Wind load:
SY 27-4: 80 N at 150 Km/h
• Wind resistance: 120 Km/h
• Wind surface: 0.07 m²
• Dimensions (approx.):
SY 27-4: 5725x4030x100 mm
• Boom length / diameter:
SY 27-4: 4030 mm / 33 mm
• Max. element length (approx.):
SY 27-4: 5725 mm
• Turning radius (approx.):
SY 27-4: 3600 mm
• Weight (approx.):
SY 27-4: 6100 gr
• Mounting mast: Ø 35-50 mm

http://www.sirioantenne.it/en/products/hf/sy-4