User`s manual

Table Of Contents
The autosaving and naming capabilities of CLIO render the job of measuring and
creating a complete 3D directivity data set an easy and automatic task (see later
12.9 and 12.10 for examples).
In order to reduce the number of files needed to describe the directivity pattern of
a source, it is possible to use the source symmetry if any.
There are five different symmetries available:
The None, Half, Quarter and Axial symmetry modes are self explanatory.
The H+V mode refer to a slight different scheme and is supported to permit users
with a single turntable to create directivity balloons by means of mathematical
interpolation of the missing data. The H+V mode require a set of 144
measurements, collected over the horizontal and vertical complete polars from -180
to 180 degrees (instead of half polars from 0 to 180 that are used elsewhere).
For a detailed description of H+V mode please refer to section 12.13 at the end of
this chapter.
12 WATERFALL , DIRECTIVITY & 3D 171