Radio modems in the UHF and VHF frequency range are used for a wide range of applications for communication in critical situations, SCADA communication and monitoring and telemetry. These systems use a lower frequency range, which requires narrow radio channels with a width of 12.5 or 25 kHz, which results in lower capacities, but also extremely robust communication with a range of more than 100 km. Although communication using diffraction is possible even in conditions where there is no optical visibility, these systems can use one or more repeaters to increase the range and coverage of an area. The system is of industrial construction, very robust and reliable, and connections typically offer high availability and, due to narrow RF channels, low cost of using the RF spectrum.
Modern radio modems today support full duplex, as well as capacities greater than 100 kbit/s, a high level of security through encryption, filtering and authentication, high system gain, a greater number of serial and Ethernet interfaces, and the possibility of gradual migration, i.e. parallel operation of the old serial and new Ethernet networks. Radio modems are used in numerous industries, most often in energy, water supply and drainage, oil and gas transmission, and transportation.
The MICRO-LINK company has many years of experience in the implementation of UHF and VHF radio modems for monitoring and management in critical situations.