Since the question is back and actual.
Never saw somewhere a particular cases as:
- unequal distribution of radians.
- my tower is a triangular selfsupported one.
-My lot has a triangular shape.
I can not reach all azimuths since the tower is only 20' away of the
house which is about thirty width .
Since I can't reach the grass directly from the base of the tower. What
will happen if the distribution of the radials will start 6 or 7 foot
from the tower, connected to a single wire.
Not in all azimuth can be reached and more then half of the number will
be shorter then a Lambda/4 ?
More , is it allowed to change a radial from direction on its run.
As one can see, this a very irregular shape....
After this question an other will follow about general behaviour of
loaded Tower, and loading technicalities.
Thanks for reading me.
[mailto:firstname.lastname@example.org] De la part de Tom Rauch
Envoyé?: vendredi 22 octobre 2004 15:51
À?: Yo3ctk; email@example.com
Objet?: Re: [TowerTalk] Ground radials/elevated radials
> The same would hold true for elevated radials?
Elevated radials are overrated. Unless you can get them up
1/4 wl or more in the air, you will still contend with
ground losses when you only use a few radials. Also the
system is NOT fully unbalanced when you use a small
counterpoise. It is in the murkey land of not being balanced
and not being totally unbalanced.
> I am designing a 4-square for 80m. Full size verticals.
> phasing/switching unit. But I need elevated radials for
> (the land below is used for small-size agriculture). I am
not sure how many
> and how long radials are needed for each antenna. I am not
> ultimate system, only one with decent results.
When I tested systems at a few locations, I found I needed
about 15-20 elevated radials (up about 6 ft) to equal 60 on
the ground. You will still need a choke or current balun to
cool off the feedlines in some cases even with 15 radials.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
any questions and ask for Sherman, W2FLA.
TowerTalk mailing list
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
TowerTalk mailing list