Every mobile siren can be controlled directly on site via local control devices. Upon request, it can be supplemented with remote controls equipped with an embedded microphone and, optionally, with wireless transmission modules.
Radio control is possible via specialised radio networks designated for simple and complex warning systems. Every mobile siren can be simultaneously used as a signal transmitter to control other sirens.
Satellite control is suitable for siren control in vast areas without existing technical infrastructure such as groups of islands or deserts. Communication modems offered by satellite service providers are utilised.
GPRS/EDGE control via commercial networks of mobile operators is useful if there is no requirement for a highly reliable network with uninterruptible power supply and two independent communication channels.
POCSAG control is based on the POCSAG standard for radio data transmission to pagers. Like the RDS type of control, it is one-way data transmission; therefore, in principle, the POCSAG control is used as a back-up control channel.
RDS (Radio Data System) control
One-way RDS transmission is currently a standard feature of every VHF radio broadcasting system. One of the RDS channels can be designated for the mass activation/deactivation of large siren networks.