Verint Nextiva S1100w User Manual - Interference
2: System and RF Planning
16
Verint Video Solutions
For example, consider a device running in the 5.3 GHz band in North America. Since the
maximum EIRP allowed in this area is 30 dBm, you should not install an antenna whose
gain is greater than 24 dBi (that is, 30 dBm - 6 dB).
Note: Connecting an antenna with a gain higher than the calculated value contravenes your
country’s regulations. It is your responsibility to ensure that you respect the
regulations in place.
Interference
In most countries, the 2.4 GHz band is not regulated by a government agency; this absence
of frequency coordination can result in interference between various systems. For instance,
if a link with an RF line of sight is subject to excessive video delay and very low frame rate
(or possibly breakdown of video images), it could be due to interference.
Fortunately, you have ways of adapting your setup to avoid interference:
RF channel selection—In the 2.4 GHz band, the S1100w has 11 or 13 channels to
choose from. In case of interference, it is recommended to change channel until you
find a clean one.
Antenna selection—Replacement of the integrated antenna by a higher gain one can
significantly lower the interference from other radio systems. Replace the antenna if
switching channels does not correct the problem or if all channels must be used to
colocate several systems.
The 5 GHz band is less cluttered than the 2.4 GHz band, resulting in less potential
interference from other wireless systems.
RF Exposure Considerations
In order to comply with the RF exposure requirements of CFR 47 part 15 in North America,
the devices must be installed in such a way as to allow a minimum separation distance of
12 inches (30 cm) between antennas and persons nearby.