The importance of radials all depends on vertical height. If you can't put out much in the way of radials, you can still get excellent results by making your vertical longer than 1/4 wavelength and/o
Good points Rick, That's why many people have good success with the inverted L. If it is made longer than a quarter wave length the radiation resistance rises and a good ground becomes less importan
If you model an inverted L, you will find that add the horizontal portion does nothing for low angle vertically polarized radiation. It only produces useless high angle horizontally polarized radiat
Yep, my 60 footer kicks butt on 40m. Probably would with just a ground rod, too, You buy an HF2V and you put it over a ground rod and you're going to have a miserable signal. You put up a resonant i
If installed over salty marsh. Ever tried to model or compare any vertical over average and "perfect" sea ground and see the gain at LOW angles? The higher and larger the current carrying portion of
A more accurate statement would be that the performance starts to be determined more by the far field ground properties, which, with a vertically polarized antenna, are pretty important to overall pe
kind of depends on where the feedline exterior choke is... if you put the choke at the transmitter, you'd have at least one radial... the outside of the coax. Holy cow.. is he living in a perptually
Yes. It is VERY well known (that is, long ago proven science) that radials affect the EFFICIENCY of a vertical, while the ground in the far field determines the vertical radiation pattern, especially
That they are (frustratingly so, if you're trying to get good performance from small vertically polarized antenns). Having gone back and looked at them, what's kind of missing from the discussion is
Go to the W4RNL web page on antennas and read about half wave vertical dipoles elevated above ground and see his studies with and without radials. The half wave inverted L is another good elevated pe
The half wave inverted L is another good elevated performer sans radials. Just bring the feedline at right angles to the L. (as close as possible) I am wondering why hams like AA4NN get good results
While that may help somewhat, it is not a cure-all. WWVH had to put radial fields under their VERTICAL DIPOLES (bottom ends a foot or two above ground) because of the ground losses from coupling hig