SIRIO - GPA 27-45 - QUARTER WAVE TUNABLE GROUND PLANE ANTENNA - TUNING DIAGRAM FROM 27 TO 45 MHz INCLUDED

Features: 

• Base station antenna from 27 MHz (CB band) to 45 MHz (VHF) 
• Unity-gain (2.15 dBiso), Omnidirectional 
• Low radiation angle for excellent DX 
• High power handling capability 
• Made of aluminium alloy 6063 T-832 
• Tunable by whips length adjusting (tuning diagram included)
• Side mast mounting allowed by optional bracket FT-2 code 2510004.00 

Electrical Data 

• Type: 1/4 wave ground plane 
• Frequency range: tunable from 27 to 45 MHz 
• Impedance: 50 ohm 
• Radiation (H-plane): 360° omnidirectional 
• Polarization: linear vertical 
• Gain: 0 dBd, 2.15 dBi 
• Bandwidth @ SWR 2:1: 2500 KHz (230 channel) @ 27 MHz 
• SWR @ resonance: 1.2:1 
• Max. power: 1000 Watts (CW) continuous 3000 Watts (CW) short time 
• Feed system / position: direct / center 
• Connector: SO-239 (UHF-female) 

Mechanical Data 

• Materials: Aluminium, Chromed brass, Nylon 
• Wind load / resistance: 126 N at 150 Km/h / 130 Km/h 
• Wind surface: 0.11 mq. 
• Height (approx.): 4730 mm from stylus top to radial bottom
• Height (from base mount): about 2.75 m. @ 27 MHz
• Weight (approx.): 1250 gr 
• Radial length (approx.): 2680 mm