3-Band Ultimate 10 Element HF Yagi Antenna 3B-334

  • 3-Band Ultimate 10 Element HF Yagi Antenna 3B-334

3B-334 Tri-Band antenna with central wide spaced elements that can fit in antenna towers up to 1m wide. Specially designed for rotary towers and for antenna stacks.

Stack-tri-band-antenna-3B-334-4O3

Antenna design with wide spaced central. 3-Band antenna can fit in the middle of rotary tower or fixed to USA or Japan in antenna stacks (in EU). We propose tower not wider than 0.8 m. It will perfectly fit with about 13 cm space from all elements to tower. 

Antenna uses common feed line. Input power limited by feed line only. Very low SWR, excelent F/B. Wind survival speed 170 km/h.

Electrical Specifications      
  14 MHz 21 MHz 28 MHz
Frequency Range: 14.0 - 14.35 MHz 21.0 - 21.45 MHz 28.0 - 29 MHz
Free Space Forward Gain: 6.8 dBi 7.6 dBi 8.9 dBi
Front to Back Ratio: 21 dB 24 dB 21 dB
3 dB Horizontal Beamwidth: 66° 65° 56°
Nominal Input Impedance: 50 Ohm 50 Ohm 50 Ohm
Maximum SWR at any freq.: 1 : 1.3 1 : 1.3 1 : 1.2
Maximum Power Input: More than 1.5 kW More than 1.5 kW More than 1.5 kW
       
Matching Method: Direct feed through current balun. One cable for all three bands.  
Connector: SO239    
       
Mechanical Specifications      
Boom length: 6 m    
Boom: 80 x 80 mm    
Longest element: 11.5 m    
No. of elements: 10    
Turning radius: 7 m    
Surface Area: 1.25 m2    
Mounting Mast Diameter: 43 - 70 mm    
Survival Wind Speed:   160 km/h     
Weight: 54 kg    

Two antenna stack:

Electrical Specifications Stack characteristics  
  14 MHz 21 MHz 28 MHz
Frequency Range: 14.0 - 14.35 MHz 21.0 - 21.45 MHz 28.0 - 29 MHz
Free Space Forward Gain: 9.66 dBi 11.27 dBi 12.15 dBi
Front to Back Ratio: 22 dB 19 dB 22 dB
3 dB Horizontal Beamwidth: 66° 65° 56°
Nominal Input Impedance: 50 Ohm 50 Ohm 50 Ohm
Maximum SWR at any freq.: 1 : 1.3 1 : 1.3 1 : 1.3
Stack:   9 m



  • Product Code: 4160
  • Availability: In Stock
  • 890.00€


Tags: 3-band, 3-band stack antenna, 3b-334-4o, triband