- Dedicated emergency services networks are designed to be resilient to failure, and to continue to operate during extreme conditions. In contrast, it has been the experience in most major emergencies that the first networks to fail, and the last networks to recover, are the commercial networks.
- Dedicated emergency services networks are designed to provide coverage into remote areas, and to ensure almost total state wide network coverage. In contrast commercial networks tend to focus on where the population lives, and their network coverage in remote rural areas may be sparse.
In addition, public safety systems in hazardous sites cannot use GSM based devices and micro-cells – they are not intrinsically safe, and it is simply too dangerous to use anything but a dedicated low power and safe network when personnel may be in the presence of gases or explosives.
Emergency Services networks consist of a system of interconnected Base Stations. If these are state wide, they must be carefully positioned to enable accurate coverage across the terrain, and must be coordinated in terms of frequency and timing to ensure the efficient operation of the network and the pagers. If they are local to a site, care must be exercised in the location and design of the transmitters so that appropriate coverage occurs in all buildings and circumstances on the site.
Infostream manufactures Base Station Controllers, Cypher Transmitter Encoders and Simulcast Network Encoders as part of its integrated network offering. These can be coupled to commercial transmitters to form a complete integrated Base Station.