Dans le manuel "Buddipole in the field" de Scott Anderson NE1RD
https://lib.store.yahoo.net/lib/buddipole/BIF2.pdf#_ga=2.42529637.1171948564.1558108289-1194726127.1558108289,
on aborde différentes configurations de la buddipole dont celle en position verticale avec essai d'un ou plusieurs contrepoids. Il recommande à la page 65 au moins 2 contrepoids et au plus 4:
How many radials are needed? Is
one wire enough? The answer
often given is, “it depends.” Well,
perhaps. But adding additional
radials reduces ground losses and
often lowers the average angle of
radiation—both very good things.
The author recommends no fewer
than 2 radials, and 4 or more
radials are preferred. Deploying
more than one ensures that you
have no dead spots in your
radiation (and receiving) far field
pattern. It would be a shame to
miss a rare DX contact for lack of
running a single wire!