I think he is "OBVIOUSLY" speaking of a physical shortening.

In that light, not only will your comments be confusing, but also of
no, or even a negative use...

John

"Ham op" wrote in message
...
Loading coils do NOT shorten an antenna! They electrically lengthen
an antenna that is already physically too short.

What do you really want to accomplish?

wrote:
Hi All,

At 433 MHz UHF, I need to reduce the lenght of the dipole using
loading
coils or a better method.

I need to know if there is a antenna program or a method to
determine
values and location.

tnx de KJ4UO.