Description
Sirio GPA 27-45 quarter-wave tunable ground plane antenna.
Features:
- Base station antenna from 27 MHz (CB band) to 45 MHz (VHF)
- Unity-gain (2.15 dBi)
- 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 W (CW) continuous, 3000 W (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 m²
- 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
