F9FT AFT-20318, 9+9 elementos serie Pro XL

F9FT AFT-20318, 9+9 elementos serie Pro XL dipolos cruzados

• Radiation at 144.3 MHz:
  
• Effective electrical length: 1.81 
  
• Isotropic gain: 13.2 dBi
  
• Aperture angle @ -3 dB: - E-plane: 2 x 20.6°  - H-plane: 2 x 23.2°
  
• First side lobe set: - E-plane: - 20 dB @ 55°  - H-plane: - 14 dB @ 60°
  
• Rear protection: - 21 dB
  
• Average stray radiation: - E-plane: - 30 dB  - H-plane: - 24 dB
  
• Bandwidth:  Gain @ -1 dB: 141 to 149 MHz
  
• Nominal impedance: 50 Ohm
  
• Impedance match bandwidth @ SWR<1.3/1: 143 to 148 MHz
  
• Maximum RF power (peak, SSB/CW): 1000 W
  
• Array of 2 or 4 antennas: (optimized stacking distance, from center to center of elements, for minimal side lobe radiation)
  - E-plane:  - Electrical distance: 1.49
  - E-plane:  - Practical distance: 3.10 m
  - H-plane:  - Electrical distance: 1.41 l
  - H-plane:  - Practical distance: 2.93 m
  
• Connector: N
  
• Overall length: 3.95 m
  
• Mass: 4.5 kg
  
• Effective wind load: 
  - Vertical polarisation: 0.24 m2 Approximate wind load (25m/s - 55 mph)
  - Vertical polarization: 9.2 daN
  Approximate wind load (45m/s - 100 mph):
  - Vertical polarization: 29.6 daN