Siemens ECOS SRIF 2002, Operating Instructions Manual

Page: 22 / 33

Functional Description 10/2003
Operating Instructions SRIF 2002
Page 22 of 33
● Radio path:
The radio path in open space is the most optimal one.
Stationary obstacles (e.g. walls or metallic objects) limit the transmission range
and movable or smaller objects (also humans) also influence the radio path.
Since the radio transmission in this frequency range is not only carried out
directly, but also via reflexions, other paths are also possible (multipath
propagation).