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Ground plane direttiva su sei direzioni


Verticale che si dispone di un terreno od un cortile in cui piantare tre aste verticali di 1/4 di lunghezza
post 09 Dec 2021


Antenna Vertical Links

197



Groundplane Antennas at Various Heights
Do not mount groundplane antennas at heights between 0.25 and 1.25 wavelength. At those levels above ground most of the energy will be radiated at angles of 27gr. to 45gr. into the ionosphere

How many radials does the vertical antenna really need?
Another common question is Does it matter if I lay the radi-als on the ground surface instead of burying them? This is a practical consideration because it's often much easier to lay out the radials on the surface

Hex Array - 80/40 Meter Vertical
This page describes my homebrew 80/40 meter trap vertica

40m/80m Lake Eyre Portable
This antenna has been constructed using either a old CB whip or a 2m 5/8 whip stripped down

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 80 m| 160 m| 136 khz
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