DG7YBN - Low Noise Yagis
 

Designs  
(x)
 

144 MHz Antennas

  Last Update Mar 27th 2014



     




Yagi identifier notation:

YBN = with standard Dipole (Straight Split or Folded), GTV = with bent Dipole
n = narrow-band version; m = of medium band width, w = wide-band version, z is for low impedance Z, an added LT (in tribute to the EF0210LT by YU7EF) stands for exceptionally low Antenna Temperature





Yagis with conventional Dipole   -   direct 50 / 200 ohms


  2 ele.       YBN 2-2w           6.4 dBi / 0.47 m

The 5 - 8 concept, an extendable Yagi - Steps 1, 2 ,3:

  5 ele.       YBN 2-5m         10.2 dBi / 1.55 m     extendable to YBN 2-8m  

  8 ele.       YBN 2-8m         13.1 dBi / 3.55 m     extendable to YBN 2-10w

  10 ele.     YBN 2-10w        14.3 dBi / 5.02 m     final extension with same driver cell




Low Impedance Yagis with conventional Dipole   -   12.5 / 50 ohms


  10 ele.     YBN 2-10wz         14.4 dBi / 5.10 m

  12 ele.     YBN 2-12wz         15.5 dBi / 6.80 m




GTV Yagis with bent DE   -   direct 50 ohms


  7 ele.     GTV 2-7n         12.8 dBi / 3.06 m

  8 ele.     GTV 2-8w         13.4 dBi / 3.71 m     wide-band

  8 ele.     GTV 2-8n         13.6 dBi / 3.82 m

  9 ele.     GTV 2-9n         14.0 dBi / 4.33 m




GTV Long Yagis with bent DE   -   direct 50 ohms


  10 ele.     GTV 2-10LT         14.5 dBi / 5.07 m

  12 ele.     GTV 2-12m         15.5 dBi / 6.78 m

  12 ele.     GTV 2-12n          15.7 dBi / 6.88 m

  14 ele.     GTV 2-14w         16.2 dBi / 8.34 m

  16 ele.     GTV 2-16w         16.9 dBi / 9.93 m

  19 ele.     GTV 2-19m         17.8 dBi / 12.4 m






73, Hartmut, DG7YBN


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