[MLB-WIRELESS] Is co-linear antenna the same as omni ??

[Roger Venning]

A 'omni' is an omni-directional antenna, a class of antennas that do 
not have particular directionality. In order to have 'gain' over an 
ficticious isotropic antenna (one that has equivalent sensitivity in 
all directions), the have a 'squashed donut' pattern, where the region 
of greatest sensitivity is a 360o region around the horizontal. This 
makes them ideally suited for clients that are approximately (say 
within 10 degrees) the same height but in all directions on the flat 
surface of the earth.

A co-linear antenna is a particular instance of an omni-directional.

Roger.
 


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