HF 7 elements 3-Band Yagi antenna 3B-223HD

  • HF 7 elements 3-Band Yagi antenna 3B-223HD

HF 3-Band Yagi antenna 3B-223HD

3B-223HD Triband antenna for 20, 15 and 10m band uses a common feed line. Input power limited by feed line only. Low SWR, excellent F/B.


Tri-band-antenna-3B-223-14-21-28MHz-www.antennas-amplifiers.com

Stainless steel screws with electrically large surface transitions.

HF-Antenna-Element-Transition-Tapering-3B-223-Triband

3-Band antenna 3B-223HD common feed line:

Easy to connect coaxial cable with PL-259 connector.
Watertight UV stabilized box.
Common mode balun with Teflon cable.
Measured common mode choke isolation with HP8753ES Network Analyzer:
14.1 MHz = 1.8 kOhm
21.2 MHz > 5 kOhm
28.4 MHz = 1.8 kOhm
Max. power = 2.5 kW
Used RG142 teflon coaxial cable

Triband-antenna-3B-223-Balun-connector-attaching-PL259

Electrical Specifications
14 MHz 21 MHz 28 MHz
Frequency Range: 14.0 - 14.35 MHz 21.0 - 21.45 MHz 28.0 - 29.5 MHz
Free Space Forward Gain: 6.7 dBi 6.8 dBi 7.7 dBi
Forward Gain 20m AGL 12 dBi 12.9 dBi 13.6 dBi
Front to Back Ratio: 16 dB 18 dB 25 dB
3 dB Horizontal Beamwidth: 68° 68° 62°
Number of active elements per band: 2 2 3
Maximum SWR at any freq.: 1 : 1.3 1 : 1.4 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: 4.5 m
Boom Diameter: 60 x 60 mm
Longest element: 11.6 m
No. of elements: 7
Turning radius: 6.0 m
Surface Area: 1.1 m2
Mounting Mast Diameter: 43 - 70 mm
Survival Wind Speed: 150 km/h 
Weight: 45.5 kg


  • Product Code: 3010
  • Availability: In Stock
  • 649.00€


Tags: 3-band antenna, 3b-223HD, HF triband, tri-band, 3B-223HD