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     v2.3.5

INVERTED L ANTENNA

The Corps Colours

Construction
  • 2 x 12m mast (or suitable supports)
  • λ/4 antenna element with as much in the vertical as possible, remainder bent over the top
UseStatic, HF net working
Range0-100Km
PolarityVertical
Radiation PatternOmnidirectional with slight gain towards the bend
PropagationSurface wave with a little skywave from the horizontal part
AdvantagesMore efficient than a rod or wire of the same height
Disadvantages
  • Takes a long time to set upand take down
  • Can receive skywave signals
  • Fading is caused at certain frequencies when the surface wave and skywave signals arrive out of phase with eachother
RemarksParticularly useful when using surface wave at lower than 4Mhz when it is important to keep the antenna as vertical as possible

Inverted L antenna diagram
Last updated Sunday, 19th August, 2007 @ 07:16pm

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