Verint Video Intelligence Solutions
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Nextiva S4200 Series User Guide
Risky Setup
In the 5 GHz band in Europe, the following colocated system is not supported if the
automatic frequency channel selection is enabled, or is risky with manual selection mode if
a radar is detected:
Access point applications with hidden masters. In this context, the two S4300 masters
do not see each other, while transmitters 2 and 3 do.
RF Planning
Successful operation of a wireless link depends on proper RF path planning and antenna
installation. You have to install the devices in such a way that there is a clear RF line of
sight between the two antennas. The factors to take into account are:
Location evaluation
Antenna requirements
RF exposure
Location Evaluation
The path between the two antennas must be free of obstacles that could disturb
propagation. For very short link distances—less than 500 feet (152 meters)—you may be
able to establish a working link despite partial path obstruction. However, radio waves will
be in part absorbed and in part diffracted by the obstacles, therefore affecting link
reliability. Because the reliability of such an installation is highly unpredictable, Verint does
not recommend it. A path free of any obstacle is called an RF line-of-sight path.
To establish an RF line-of-sight path, you must take into account the spherical nature of the
radio signal transmitted between the two antennas. This spherical signal spreads out from
both ends of the communication path and creates a three dimensional elliptical area
immediately surrounding the visual line of sight. This elliptical area varies in width
depending on the length of the line of sight; the longer the length, the thicker the elliptical
area becomes.
S4300
1
4
3
2
S4300
