Crudely, the lobes in the radiation patterns of the antennas you mention,
inevitably distorted by the local environment, are so broad they can be
considered largely omni-directional, except that purely vertical antennas
always have a vertical null and horizontal antennas don't radiate quite so
well in line with the wire as they do broadside to the wire.

The type of local ground also has a disturbing effect. As people seldom know
what type of soil they have it's somewhat statistically unpredictable.
Which all adds to the fun.

The term "radiation angle" doesn't really apply, its a misnomer, until you
have a high, multi-element, directional beam antenna which EZNEC (a computer
program) can get its teeth into.
---
Reg, G4FGQ

===================================

"Richard" wrote in message
...
Could someone tell me what the radiation angles of the following aerials
(roughly) a

Half wave dipole
Quarter wave verticle
Longwire

TIA,

Richard