F9FT AFT-20317, 17 elementos serie Pro-XL

F9FT AFT-20317 17 elementos serie Pro-XL

• Radiation at 144.3 MHz:
  -Effective electrical length: 5.01 l
  -Isotropic gain: 17.0 dBi
  
• Aperture angle @ -3 dB: - E-plane: 2 x 14.0°  - H-plane: 2 x 14.9°
  
• First side lobe set: - E-plane: - 18 dB @ 36°  - H-plane: - 14 dB @ 37°
  
• Rear protection: - 29 dB
  
• Average stray radiation: - E-plane: - 35 dB    - H-plane: - 27 dB
  
• Bandwidth: Gain @ -1 dB: 141 to 149 MHz
  
• Nominal impedance: 50 Ohm
  
• Impedance match bandwidth @ SWR<1.3/1: 143 to 146 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: 2.15 l
  - E-plane: - Practical distance: 4.47 m
  - H-plane: - Electrical distance: 2.15 l
  - H-plane: - Practical distance: 4.47 m
  
• Connector: N
  
• Overall length: 10.45 m
  
• Mass: 18.5 kg
  
• Effective wind load: 
  - Horizontal polarization: 0.73 m2  Approximate wind load (25m/s - 55 mph)
  - Horizontal polarization: 27.8 daN Approximate wind load (45m/s - 100 mph)
  - Horizontal polarization: 89.7 daN